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How big are my tires in inches
Tire Size Calculator
Tire Size Calculator Chart for 13" Wheels
21" Tire Diameter
185/60R13 = 21.7x7.3R13
215/50R13 = 21.5X8.5R13
225/45R13 = 21x8.9R13
225/50R13 = 21.9x8.9R13
255/40R13 = 21x10R13
22" Tire Diameter
155/80R13 = 22.8x6.1R13
175/70R13 = 22.6x6.9R13
205/60R13 = 22.7x8.1R13
22X8R13
23" Tire Diameter
165/80R13 = 23.4X6.5R13
185/70R13 = 23.2x7.3R13
24" Tire Diameter
175/80R13 = 24x6.9R13
185/80R13 = 24.7x7.3R13
24.5X8R13
24.5X9R13
Tire Size Calculator Chart for 14" Wheels
19" Tire Diameter
105/70R14 = 19.8X4.1R14
20" Tire Diameter
115/70R14 = 20.3X4.5R14
125/70R14 = 20.9X4.9R14
21" Tire Diameter
165/55R14 = 21.1X6.5R14
22" Tire Diameter
135/80R14 = 22.5X5.3R14
165/65R14 = 22.4x6.5R14
185/55R14 = 22x7.3R14
185/60R14 = 22.7x7.3R14
195/55R14 = 22.
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4x7.7R14
205/50R14 = 22.1x8.1R14
205/55R14 = 22.9x8.1R14
225/50R14 = 22.9x8.9R14
23" Tire Diameter
175/65R14 = 23x6.9R14
175/70R14 = 23.6x6.9R14
185/65R14 = 23.5x7.3R14
195/60R14 = 23.2x7.7R14
205/60R14 = 23.7x8.1R14
24" Tire Diameter
185/70R14 = 24.2x7.3R14
185/75R14 = 24.9X7.3R14
195/65R14 = 24x7.7R14
195/70R14 = 24.7x7.7R14
215/60R14 = 24.2x8.5R14
225/60R14 = 24.6x8.9R14
25" Tire Diameter
185R14 = 25.7x7.3R14
195/75R14 = 25.5x7.7R14
205/70R14 = 25.3x8.1R14
215/70R14 = 25.9x8.5R14
235/60R14 = 25.1x9.3R14
245/60R14 = 25.6x9.6R14
26" Tire Diameter
195R14 = 26.2x7.8R14
205/75R14 = 26.1x8.1R14
215/75R14 = 26.7x8.5R14
225/70R14 = 26.4x8.9R14
26X8.5R14
27" Tire Diameter
205R14 = 27x8.2R14
27X8.5R14
27X9.5R14
28" Tire Diameter
28X10R14
30" Tire Diameter
30X10R14
Tire Size Calculator Chart for 15" Wheels
20" Tire Diameter
105/70R15 = 20.
8X4.1R15
21" Tire Diameter
115/70R15 = 21.3X4.5R15
125/70R15 = 21.9X4.9R15
165/50R15 = 21.5X6.5R15
195/45R15 = 21.9x7.7R15
22" Tire Diameter
125/80R15 = 22.9X4.9R15
145/65R15 = 22.4x5.7R15
155/60R15 = 22.3x6.1R15
165/60R15 = 22.8x6.5R15
175/55R15 = 22.6x6.9R15
195/50R15 = 22.7x7.7R15
22X8R15
22.5X4.5R15
245/40R15 = 22.7X9.6R15
275/35R15 = 22.6x10.8R15
23" Tire Diameter
135/80R15 = 23.5X5.3R15
165/65R15 = 23.4X6.5R15
175/60R15 = 23.3x6.9R15
185/55R15 = 23x7.3R15
185/60R15 = 23.7x7.3R15
195/55R15 = 23.4x7.7R15
205/50R15 = 23.1x8.1R15
205/55R15 = 23.9x8.1R15
225/45R15 = 23x8.9R15
225/50R15 = 23.9x8.9R15
295/35R15 = 23.1X11.6R15
24" Tire Diameter
135/90R15 = 24.6X5.3R15
155/80R15 = 24.8X6.1R15
175/65R15 = 24x6.9R15
185/65R15 = 24.5x7.3R15
195/60R15 = 24.2x7.7R15
205/60R15 = 24.7x8.1R15
225/55R15 = 24.7x8.
9R15
235/50R15 = 24.3x9.3R15
24X4.5R15
24X5R15
24.5X8R15
245/50R15 = 24.6x9.6R15
345/35R15 = 24.5x13.6R15
25" Tire Diameter
165/80R15 = 25.4X6.5R15
185/70R15 = 25.2x7.3R15
195/65R15 = 25x7.7R15
195/70R15 = 25.7x7.7R15
205/65R15 = 25.5x8.1R15
215/60R15 = 25.2x8.5R15
225/60R15 = 25.6x8.9R15
265/50R15 = 25.4X10.4R15
275/50R15 = 25.8x10.8R15
26" Tire Diameter
205/70R15 = 26.3x8.1R15
215/65R15 = 26x8.5R15
215/70R15 = 26.9x8.5R15
235/60R15 = 26.1x9.3R15
245/60R15 = 26.6x9.6R15
26X10R15
26X10.5R15
26X11.5R15
26X6R15
26X7.5R15
26X8R15
26X8.5R15
295/50R15 = 26.6x11.6R15
27" Tire Diameter
205/75R15 = 27.1x8.1R15
215/75R15 = 27.7x8.5R15
225/70R15 = 27.4x8.9R15
255/60R15 = 27x10R15
27X10.5R15
27X9.5R15
27.5X4.5R15
295/55R15 = 27.8X11.6R15
325/50R15 = 27.8x12.8R15
E78-15 = 27x6.5R15
28" Tire Diameter
225/75R15 = 28.
3x8.9R15
235/70R15 = 28x9.3R15
235/75R15 = 28.9x9.3R15
245/70R15 = 28.5X9.6R15
255/65R15 = 28.1x10R15
275/60R15 = 28x10.8R15
28X10.5R15
28X11.5R15
28X12.5R15
28X13.5R15
28X4.5R15
28X7.5R15
28X9R15
29" Tire Diameter
215/85R15 = 29.4X8.5R15
255/70R15 = 29.1x10R15
265/70R15 = 29.6x10.4R15
29X10.5R15
29X11.5R15
29X12.5R15
29X15.5R15
29X18R15
29X18.5R15
29X4.5R15
29X8.5R15
29.5X11.5R15
29.5X13.5R15
29.5X9R15
315/60R15 = 29.9x12.4R15
7R15 = 29.5x7.7R15
30" Tire Diameter
255/75R15 = 30.1x10R15
265/75R15 = 30.6x10.4R15
295/65R15 = 30.1x11.6R15
30X10R15
30X10.5R15
30X11.5R15
30X12.5R15
30X13.5R15
30X7R15
30X9R15
30X9.5R15
31" Tire Diameter
31X10.5R15
31X11R15
31X11.5R15
31X12.5R15
31X13R15
31X13.5R15
31X14.5R15
31X16.5R15
31X18R15
31X18.5R15
31X9.5R15
32" Tire Diameter
32X10.
5R15
32X11.5R15
32X14R15
32X16R15
32X17.5R15
32X18.5R15
32X9.5R15
33" Tire Diameter
33X10.5R15
33X11.5R15
33X12.5R15
33X13R15
33X13.5R15
33X14R15
33X14.5R15
33X15.5R15
33X16.5R15
33X19.5R15
33X21.5R15
33X9R15
33X9.5R15
34" Tire Diameter
34X10.5R15
34X12.5R15
34X9.5R15
35" Tire Diameter
35X10.5R15
35X12.5R15
35X13.5R15
35X14.5R15
35X15R15
35X15.5R15
35X16R15
36" Tire Diameter
36X12.5R15
36X13.5R15
36X14.5R15
37" Tire Diameter
37X12.5R15
37X13R15
37X13.5R15
37X14R15
37X14.5R15
38" Tire Diameter
38X12.5R15
38X13R15
38X14.5R15
38X15.5R15
38.5X11R15
38.5X13.5R15
38.5X14.5R15
38.5X15R15
38.5X16R15
39" Tire Diameter
39X13.5R15
39.5X13.5R15
39.5X15R15
39.5X18R15
40" Tire Diameter
40X16R15
42" Tire Diameter
42X14R15
42X15R15
42.
5X13.5R15
44" Tire Diameter
44X18.5R15
44X19.5R15
44X21R15
47" Tire Diameter
47X17R15
Tire Size Calculator Chart for 16" Wheels
22" Tire Diameter
125/70R16 = 22.9X4.9R16
175/50R16 = 22.9x6.9R16
195/40R16 = 22.1x7.7R16
195/45R16 = 22.9x7.7R16
205/40R16 = 22.5x8.1R16
215/35R16 = 21.9x8.5R16
215/40R16 = 22.8x8.5R16
23" Tire Diameter
125/80R16 = 23.9X4.9R16
135/70R16 = 23.4X5.3R16
175/55R16 = 23.6x6.9R16
185/50R16 = 23.3X7.3R16
195/50R16 = 23.7x7.7R16
205/45R16 = 23.3x8.1R16
215/45R16 = 23.6x8.5R16
24" Tire Diameter
125/85R16 = 24.4X4.9R16
125/90R16 = 24.9X4.9R16
135/80R16 = 24.5X5.3R16
175/60R16 = 24.3x6.9R16
185/55R16 = 24x7.3R16
185/60R16 = 24.7X7.3R16
195/55R16 = 24.4x7.7R16
205/50R16 = 24.1x8.1R16
205/55R16 = 24.9x8.1R16
215/50R16 = 24.5X8.5R16
225/45R16 = 24x8.9R16
225/50R16 = 24.
9x8.9R16
245/45R16 = 24.7x9.6R16
25" Tire Diameter
135/90R16 = 25.6X5.3R16
145/80R16 = 25.1X5.7R16
195/60R16 = 25.2x7.7R16
205/60R16 = 25.7x8.1R16
215/55R16 = 25.3x8.5R16
225/55R16 = 25.7x8.9R16
245/50R16 = 25.6x9.6R16
265/45R16 = 25.4X10.4R16
275/45R16 = 25.7x10.8R16
315/40R16 = 25.9X12.4R16
26" Tire Diameter
145/90R16 = 26.3X5.7R16
145/90R16 = 26.3X5.7R16
195/65R16 = 26X7.7R16
205/65R16 = 26.5x8.1R16
215/60R16 = 26.2x8.5R16
225/60R16 = 26.6x8.9R16
235/55R16 = 26.2x9.3R16
255/50R16 = 26x10R16
26X11.5R16
27" Tire Diameter
155/90R16 = 27X6.1R16
195/75R16 = 27.5x7.7R16
205/70R16 = 27.3x8.1R16
215/65R16 = 27x8.5R16
215/70R16 = 27.9x8.5R16
225/65R16 = 27.5x8.9R16
235/60R16 = 27.1x9.3R16
295/50R16 = 27.6x11.6R16
355/40R16 = 27.2X14R16
28" Tire Diameter
195/80R16 = 28.3x7.7R16
205/75R16 = 28.1X8.1R16
205/80R16 = 28.
9x8.1R16
215/75R16 = 28.7x8.5R16
225/70R16 = 28.4x8.9R16
235/65R16 = 28x9.3R16
255/60R16 = 28x10R16
28X11.5R16
29" Tire Diameter
225/75R16 = 29.3x8.9R16
235/70R16 = 29x9.3R16
235/75R16 = 29.9x9.3R16
245/70R16 = 29.5x9.6R16
255/65R16 = 29.1x10R16
275/60R16 = 29X10.8R16
285/60R16 = 29.5X11.2R16
30" Tire Diameter
215/85R16 = 30.4x8.5R16
235/80R16 = 30.8x9.3R16
245/75R16 = 30.5x9.6R16
255/70R16 = 30.1x10R16
265/70R16 = 30.6x10.4R16
285/65R16 = 30.6X11.2R16
30X11.5R16
31" Tire Diameter
225/85R16 = 31.1X8.9R16
235/85R16 = 31.7x9.3R16
265/75R16 = 31.6x10.4R16
275/70R16 = 31.2x10.8R16
285/70R16 = 31.7x11.2R16
31X10.5R16
31X11R16
31X11.5R16
31X12.5R16
7.5R16 = 31.8x8.7R16
32" Tire Diameter
265/80R16 = 32.7X10.4R16
285/75R16 = 32.8x11.2R16
305/70R16 = 32.8x12R16
32X10R16
32X11.5R16
32X9R16
33" Tire Diameter
255/85R16 = 33.
1x10R16
295/75R16 = 33.4x11.6R16
33X10.5R16
33X11.5R16
33X12.5R16
33X13R16
33X13.5R16
33X14R16
33X14.5R16
33X9.5R16
33.5X16.5R16
34" Tire Diameter
315/75R16 = 34.6x12.4R16
34X10.5R16
34X12.5R16
34X13.5R16
34X9R16
34.5X17R16
35" Tire Diameter
35X10.5R16
35X12.5R16
35X14.5R16
35X15R16
35X16R16
375/65R16 = 35.2x14.8R16
36" Tire Diameter
325/80R16 = 36.5x12.8R16
345/75R16 = 36.4x13.6R16
36X12.5R16
36X13R16
36X13.5R16
36X14.5R16
37" Tire Diameter
365/75R16 = 37.6x14.4R16
37X12.5R16
37X13R16
37X13.5R16
37X14R16
37X14.5R16
385/70R16 = 37.2x15.2R16
395/70R16 = 37.8x15.6R16
38" Tire Diameter
38X13R16
38X14.5R16
38X15.5R16
38.5X11R16
38.5X13.5R16
38.5X14.5R16
38.5X15R16
39" Tire Diameter
39X13.5R16
39.5X13.5R16
39.5X15R16
40" Tire Diameter
40X16R16
41" Tire Diameter
41X14.
5R16
42" Tire Diameter
42X14R16
42X15R16
42.5X13.5R16
44" Tire Diameter
44X19.5R16
44X21R16
46" Tire Diameter
46X19.5R16
Tire Size Calculator Chart for 16.5" Wheels
29" Tire Diameter
8.75R16.5 = 29.5x8.8R16.5
30" Tire Diameter
9.5R16.5 = 30.6x9.5R16.5
32" Tire Diameter
32X12R16.5
33" Tire Diameter
33X11.5R16.5
33X12.5R16.5
33X14R16.5
33X14.5R16.5
33X15.5R16.5
35" Tire Diameter
35X12.5R16.5
35X14.5R16.5
35X15R16.5
35X15.5R16.5
35X16R16.5
35X9.5R16.5
36" Tire Diameter
36X12.5R16.5
36X13.5R16.5
36X14.5R16.5
36X16R16.5
37" Tire Diameter
37X12.5R16.5
37X13R16.5
37X14R16.5
38" Tire Diameter
38X11R16.5
38X12.5R16.5
38X15.5R16.5
38.5X11R16.5
38.5X13.5R16.5
38.5X14.5R16.5
38.5X15R16.
5
38.5X16R16.5
39" Tire Diameter
39X13.5R16.5
39.5X13.5R16.5
39.5X15R16.5
39.5X18R16.5
42" Tire Diameter
42X14R16.5
42X15R16.5
42.5X13.5R16.5
43" Tire Diameter
43X14.5R16.5
44" Tire Diameter
44X18.5R16.5
44X18.5R16.5
44X19.5R16.5
44X21R16.5
47" Tire Diameter
47X17R16.5
48" Tire Diameter
48X12.5R16.5
49" Tire Diameter
49X21R16.5
Tire Size Calculator Chart for 17" Wheels
22" Tire Diameter
22X2.5R17
23" Tire Diameter
125/70R17 = 23.9X4.9R17
195/40R17 = 23.1x7.7R17
195/45R17 = 23.9x7.7R17
205/40R17 = 23.5x8.1R17
215/35R17 = 22.9x8.5R17
215/40R17 = 23.8x8.5R17
225/35R17 = 23.2x8.9R17
245/35R17 = 23.8x9.6R17
24" Tire Diameter
125/80R17 = 24.9X4.9R17
135/70R17 = 24.4X5.3R17
205/45R17 = 24.3x8.1R17
215/45R17 = 24.6x8.
5R17
225/40R17 = 24.1x8.9R17
235/40R17 = 24.4x9.3R17
245/40R17 = 24.7x9.6R17
275/35R17 = 24.6x10.8R17
25" Tire Diameter
115/95R17 = 25.6X4.5R17
135/80R17 = 25.5X5.3R17
145/70R17 = 25X5.7R17
155/70R17 = 25.5X6.1R17
205/50R17 = 25.1x8.1R17
205/55R17 = 25.9x8.1R17
215/50R17 = 25.5X8.5R17
225/45R17 = 25x8.9R17
225/50R17 = 25.9x8.9R17
235/45R17 = 25.3x9.3R17
245/45R17 = 25.7x9.6R17
255/40R17 = 25x10R17
265/40R17 = 25.3x10.4R17
275/40R17 = 25.7x10.8R17
295/35R17 = 25.1x11.6R17
315/35R17 = 25.7x12.4R17
26" Tire Diameter
135/90R17 = 26.6X5.3R17
145/80R17 = 26.1X5.7R17
155/80R17 = 26.8X6.1R17
215/55R17 = 26.3x8.5R17
225/55R17 = 26.7x8.9R17
235/50R17 = 26.3x9.3R17
245/50R17 = 26.6x9.6R17
255/45R17 = 26x10R17
26X11.5R17
285/40R17 = 26x11.2R17
295/40R17 = 26.3x11.6R17
335/35R17 = 26.2x13.2R17
27" Tire Diameter
145/90R17 = 27.
3X5.7R17
165/80R17 = 27.4X6.5R17
215/60R17 = 27.2x8.5R17
225/60R17 = 27.6x8.9R17
235/55R17 = 27.2x9.3R17
245/55R17 = 27.6x9.6R17
255/50R17 = 27x10R17
275/50R17 = 27.8X10.8R17
305/45R17 = 27.8X12R17
345/40R17 = 27.9x13.6R17
28" Tire Diameter
155/90R17 = 28X6.1R17
165/90R17 = 28.7X6.5R17
215/65R17 = 28x8.5R17
215/70R17 = 28.9x8.5R17
225/65R17 = 28.5x8.9R17
235/60R17 = 28.1x9.3R17
245/60R17 = 28.6X9.6R17
255/55R17 = 28x10R17
275/55R17 = 28.9x10.8R17
29" Tire Diameter
175/90R17 = 29.4X6.9R17
225/70R17 = 29.4x8.9R17
235/65R17 = 29x9.3R17
245/65R17 = 29.5x9.6R17
255/60R17 = 29x10R17
265/60R17 = 29.5x10.4R17
30" Tire Diameter
225/75R17 = 30.3x8.9R17
235/70R17 = 30x9.3R17
235/75R17 = 30.9x9.3R17
245/70R17 = 30.5x9.6R17
255/65R17 = 30.1x10R17
265/65R17 = 30.6x10.4R17
275/60R17 = 30x10.8R17
285/60R17 = 30.5X11.2R17
31" Tire Diameter
235/80R17 = 31.
8x9.3R17
245/75R17 = 31.5x9.6R17
255/70R17 = 31.1x10R17
265/70R17 = 31.6x10.4R17
275/65R17 = 31.1x10.8R17
285/65R17 = 31.6x11.2R17
31X10.5R17
32" Tire Diameter
235/85R17 = 32.7X9.3R17
255/75R17 = 32.1x10R17
275/70R17 = 32.2x10.8R17
285/70R17 = 32.7x11.2R17
305/65R17 = 32.6x12R17
32X10.5R17
32X11.5R17
33" Tire Diameter
255/80R17 = 33.1x10R17
285/75R17 = 33.8x11.2R17
295/70R17 = 33.3x11.6R17
305/70R17 = 33.8x12R17
33X10.5R17
33X12.5R17
33X13R17
33X13.5R17
33X9.5R17
34" Tire Diameter
275/80R17 = 34.3X10.8R17
315/70R17 = 34.4x12.4R17
325/70R17 = 34.9x12.8R17
34X10.5R17
35" Tire Diameter
35X10.5R17
35X11.5R17
35X12.5R17
35X13.5R17
35X14.5R17
36" Tire Diameter
355/70R17 = 36.6x14R17
36X12.5R17
36X13.5R17
37" Tire Diameter
37X12.5R17
37X13R17
37X13.5R17
37X14R17
38" Tire Diameter
38X13.
5R17
38X14.5R17
38X15.5R17
38.5X13.5R17
38.5X14.5R17
39" Tire Diameter
39X13.5R17
39.5X13.5R17
39.5X15R17
40" Tire Diameter
40X13.5R17
40X14.5R17
40X16R17
41" Tire Diameter
41X14.5R17
42" Tire Diameter
42X14R17
42X14.5R17
42X15R17
42.5X13.5R17
43" Tire Diameter
43X14.5R17
44" Tire Diameter
44X19.5R17
44X21R17
47" Tire Diameter
47X17R17
49" Tire Diameter
49X21R17
54" Tire Diameter
54X19.5R17
Tire Size Calculator Chart for 18" Wheels
23" Tire Diameter
215/35R18 = 23.9x8.5R18
24" Tire Diameter
125/70R18 = 24.9X4.9R18
205/40R18 = 24.5x8.1R18
215/40R18 = 24.8x8.5R18
225/35R18 = 24.2x8.9R18
235/35R18 = 24.5x9.3R18
245/35R18 = 24.8x9.6R18
285/30R18 = 24.7x11.2R18
25" Tire Diameter
135/70R18 = 25.
4X5.3R18
155/60R18 = 25.3X6.1R18
215/45R18 = 25.6x8.5R18
225/40R18 = 25.1x8.9R18
235/40R18 = 25.4x9.3R18
245/40R18 = 25.7x9.6R18
255/35R18 = 25x10R18
265/35R18 = 25.3x10.4R18
275/35R18 = 25.6x10.8R18
285/35R18 = 25.9x11.2R18
295/30R18 = 25x11.6R18
305/30R18 = 25.2x12R18
315/30R18 = 25.4x12.4R18
335/30R18 = 25.9x13.2R18
26" Tire Diameter
135/80R18 = 26.5X5.3R18
145/70R18 = 26X5.7R18
215/50R18 = 26.5X8.5R18
225/45R18 = 26x8.9R18
225/50R18 = 26.9x8.9R18
235/45R18 = 26.3x9.3R18
245/45R18 = 26.7x9.6R18
255/40R18 = 26x10R18
26X12R18
265/40R18 = 26.3x10.4R18
275/40R18 = 26.7x10.8R18
295/35R18 = 26.1x11.6R18
305/35R18 = 26.4x12R18
315/35R18 = 26.7x12.4R18
345/30R18 = 26.1x13.6R18
27" Tire Diameter
145/80R18 = 27.1X5.7R18
145/85R18 = 27.7X5.7R18
215/55R18 = 27.3x8.5R18
225/55R18 = 27.7x8.9R18
235/50R18 = 27.3x9.3R18
245/50R18 = 27.
6x9.6R18
255/45R18 = 27x10R18
265/45R18 = 27.4x10.4R18
275/45R18 = 27.7x10.8R18
285/40R18 = 27x11.2R18
295/40R18 = 27.3x11.6R18
305/40R18 = 27.6X12R18
315/40R18 = 27.9x12.4R18
325/35R18 = 27x12.8R18
345/35R18 = 27.5x13.6R18
28" Tire Diameter
155/85R18 = 28.4X6.1R18
225/60R18 = 28.6x8.9R18
235/55R18 = 28.2x9.3R18
245/55R18 = 28.6x9.6R18
255/50R18 = 28x10R18
265/50R18 = 28.4X10.4R18
285/45R18 = 28.1x11.2R18
295/45R18 = 28.5x11.6R18
305/45R18 = 28.8X12R18
29" Tire Diameter
155/90R18 = 29X6.1R18
165/90R18 = 29.7X6.5R18
225/65R18 = 29.5X8.9R18
235/60R18 = 29.1x9.3R18
245/60R18 = 29.6x9.6R18
255/55R18 = 29x10R18
265/55R18 = 29.5X10.4R18
275/55R18 = 29.9x10.8R18
285/50R18 = 29.2x11.2R18
325/45R18 = 29.5X12.8R18
30" Tire Diameter
175/90R18 = 30.4X6.9R18
235/65R18 = 30x9.3R18
245/65R18 = 30.5x9.6R18
255/60R18 = 30x10R18
265/60R18 = 30.
5x10.4R18
285/55R18 = 30.3x11.2R18
31" Tire Diameter
235/70R18 = 31X9.3R18
255/65R18 = 31.1x10R18
265/65R18 = 31.6x10.4R18
275/60R18 = 31x10.8R18
285/60R18 = 31.5x11.2R18
32" Tire Diameter
255/70R18 = 32.1x10R18
265/70R18 = 32.6x10.4R18
275/65R18 = 32.1x10.8R18
285/65R18 = 32.6x11.2R18
305/60R18 = 32.4x12R18
33" Tire Diameter
275/70R18 = 33.2x10.8R18
285/70R18 = 33.7x11.2R18
295/65R18 = 33.1x11.6R18
305/65R18 = 33.6x12R18
325/60R18 = 33.4x12.8R18
33X10.5R18
33X11.5R18
33X12.5R18
33X13R18
33X13.5R18
34" Tire Diameter
285/75R18 = 34.8x11.2R18
295/70R18 = 34.3X11.6R18
305/70R18 = 34.8x12R18
325/65R18 = 34.6x12.8R18
34X12.5R18
35" Tire Diameter
315/70R18 = 35.4x12.4R18
35X11.5R18
35X12.5R18
35X13R18
35X13.5R18
35X14.5R18
36" Tire Diameter
355/65R18 = 36.2x14R18
36X13.
5R18
37" Tire Diameter
37X11.5R18
37X12.5R18
37X13.5R18
38" Tire Diameter
38X13.5R18
38X14.5R18
38X15R18
38X15.5R18
38.5X14.5R18
40" Tire Diameter
40X13.5R18
40X14.5R18
41" Tire Diameter
41X14.5R18
Tire Size Calculator Chart for 19" Wheels
24" Tire Diameter
215/35R19 = 24.9x8.5R19
235/30R19 = 24.6x9.3R19
245/30R19 = 24.8x9.6R19
295/25R19 = 24.8X11.6R19
25" Tire Diameter
115/70R19 = 25.3X4.5R19
125/70R19 = 25.9X4.9R19
225/35R19 = 25.2x8.9R19
235/35R19 = 25.5x9.3R19
245/35R19 = 25.8x9.6R19
255/30R19 = 25x10R19
265/30R19 = 25.3x10.4R19
275/30R19 = 25.5x10.8R19
285/30R19 = 25.7x11.2R19
315/25R19 = 25.2x12.4R19
26" Tire Diameter
135/70R19 = 26.4X5.3R19
225/40R19 = 26.1x8.9R19
235/40R19 = 26.4x9.3R19
245/40R19 = 26.7x9.6R19
255/35R19 = 26x10R19
265/35R19 = 26.
3x10.4R19
275/35R19 = 26.6x10.8R19
285/35R19 = 26.9x11.2R19
295/30R19 = 26x11.6R19
305/30R19 = 26.2x12R19
315/30R19 = 26.4x12.4R19
325/30R19 = 26.7x12.8R19
335/30R19 = 26.9x13.2R19
27" Tire Diameter
155/70R19 = 27.5x6.1R19
175/60R19 = 27.3x6.9R19
225/45R19 = 27x8.9R19
235/45R19 = 27.3x9.3R19
245/45R19 = 27.7x9.6R19
255/40R19 = 27x10R19
265/40R19 = 27.3x10.4R19
275/40R19 = 27.7x10.8R19
295/35R19 = 27.1x11.6R19
305/35R19 = 27.4X12R19
315/35R19 = 27.7x12.4R19
345/30R19 = 27.1x13.6R19
355/30R19 = 27.4x14R19
28" Tire Diameter
145/80R19 = 28.1X5.7R19
155/80R19 = 28.8X6.1R19
225/55R19 = 28.7x8.9R19
235/50R19 = 28.3x9.3R19
245/50R19 = 28.6x9.6R19
255/45R19 = 28x10R19
265/45R19 = 28.4X10.4R19
275/45R19 = 28.7x10.8R19
285/40R19 = 28x11.2R19
295/40R19 = 28.3X11.6R19
315/40R19 = 28.9x12.4R19
345/35R19 = 28.5x13.6R19
29" Tire Diameter
235/55R19 = 29.
2x9.3R19
245/55R19 = 29.6x9.6R19
255/50R19 = 29x10R19
265/50R19 = 29.4x10.4R19
275/50R19 = 29.8X10.8R19
285/45R19 = 29.1x11.2R19
295/45R19 = 29.5x11.6R19
30" Tire Diameter
165/90R19 = 30.7X6.5R19
175/80R19 = 30X6.9R19
255/55R19 = 30x10R19
265/55R19 = 30.5x10.4R19
275/55R19 = 30.9x10.8R19
31" Tire Diameter
235/65R19 = 31X9.3R19
255/60R19 = 31x10R19
Tire Size Calculator Chart for 20" Wheels
25" Tire Diameter
215/30R20 = 25.1X8.5R20
225/30R20 = 25.3x8.9R20
235/30R20 = 25.6x9.3R20
245/30R20 = 25.8x9.6R20
275/25R20 = 25.4X10.8R20
285/25R20 = 25.6x11.2R20
295/25R20 = 25.8x11.6R20
26" Tire Diameter
145/60R20 = 26.9X5.7R20
225/35R20 = 26.2x8.9R20
235/35R20 = 26.5x9.3R20
245/35R20 = 26.8x9.6R20
255/30R20 = 26x10R20
265/30R20 = 26.3x10.4R20
275/30R20 = 26.5x10.8R20
285/30R20 = 26.7x11.2R20
305/25R20 = 26x12R20
315/25R20 = 26.
2x12.4R20
325/25R20 = 26.4x12.8R20
335/25R20 = 26.6x13.2R20
345/25R20 = 26.8X13.6R20
27" Tire Diameter
155/60R20 = 27.3x6.1R20
155/65R20 = 27.9X6.1R20
165/60R20 = 27.8X6.5R20
175/55R20 = 27.6x6.9R20
195/50R20 = 27.7x7.7R20
215/45R20 = 27.6x8.5R20
225/40R20 = 27.1X8.9R20
235/40R20 = 27.4x9.3R20
245/40R20 = 27.7x9.6R20
255/35R20 = 27x10R20
265/35R20 = 27.3x10.4R20
275/35R20 = 27.6x10.8R20
285/35R20 = 27.9x11.2R20
295/30R20 = 27x11.6R20
305/30R20 = 27.2x12R20
315/30R20 = 27.4x12.4R20
325/30R20 = 27.7x12.8R20
335/30R20 = 27.9x13.2R20
28" Tire Diameter
225/45R20 = 28X8.9R20
235/45R20 = 28.3x9.3R20
245/45R20 = 28.7x9.6R20
255/40R20 = 28x10R20
265/40R20 = 28.3x10.4R20
275/40R20 = 28.7x10.8R20
295/35R20 = 28.1x11.6R20
305/35R20 = 28.4x12R20
315/35R20 = 28.7x12.4R20
345/30R20 = 28.1x13.6R20
29" Tire Diameter
235/50R20 = 29.
3X9.3R20
245/50R20 = 29.6x9.6R20
255/45R20 = 29x10R20
265/45R20 = 29.4x10.4R20
275/45R20 = 29.7x10.8R20
285/40R20 = 29x11.2R20
295/40R20 = 29.3x11.6R20
305/40R20 = 29.6X12R20
325/35R20 = 29X12.8R20
30" Tire Diameter
235/55R20 = 30.2x9.3R20
255/50R20 = 30x10R20
265/50R20 = 30.4x10.4R20
275/50R20 = 30.8x10.8R20
285/45R20 = 30.1X11.2R20
295/45R20 = 30.5x11.6R20
305/45R20 = 30.8x12R20
31" Tire Diameter
245/60R20 = 31.6x9.6R20
255/55R20 = 31x10R20
275/55R20 = 31.9x10.8R20
285/50R20 = 31.2x11.2R20
295/50R20 = 31.6x11.6R20
31X18R20
32" Tire Diameter
265/60R20 = 32.5x10.4R20
285/55R20 = 32.3x11.2R20
295/55R20 = 32.8X11.6R20
305/50R20 = 32x12R20
315/50R20 = 32.4x12.4R20
325/50R20 = 32.8x12.8R20
33" Tire Diameter
275/60R20 = 33x10.8R20
285/60R20 = 33.5x11.2R20
295/60R20 = 33.9X11.6R20
305/55R20 = 33.2x12R20
33X11.
5R20
33X12R20
33X12.5R20
33X13.5R20
34" Tire Diameter
275/65R20 = 34.1x10.8R20
285/65R20 = 34.6x11.2R20
305/60R20 = 34.4x12R20
315/60R20 = 34.9x12.4R20
355/50R20 = 34X14R20
35" Tire Diameter
295/65R20 = 35.1X11.6R20
325/60R20 = 35.4x12.8R20
35X11.5R20
35X12.5R20
35X13R20
35X13.5R20
35X14.5R20
36" Tire Diameter
355/60R20 = 36.8x14R20
36X13.5R20
36X15.5R20
37" Tire Diameter
37X11.5R20
37X12.5R20
37X13.5R20
37X14.5R20
38" Tire Diameter
38X13.5R20
38X14.5R20
38X15.5R20
38.5X13.5R20
38.5X14.5R20
39" Tire Diameter
39X13.5R20
39.5X13.5R20
39.5X15R20
40" Tire Diameter
40X13.5R20
40X14.5R20
40X15.5R20
41" Tire Diameter
41X14.5R20
42" Tire Diameter
42X14.5R20
42X15R20
42.5X13.5R20
43" Tire Diameter
43X14.
5R20
44" Tire Diameter
44X19.5R20
44X19.5R20
44X21R20
45" Tire Diameter
45X14.5R20
46" Tire Diameter
46X19.5R20
49" Tire Diameter
49X21R20
54" Tire Diameter
54X19.5R20
Tire Size Calculator Chart for 21" Wheels
26" Tire Diameter
245/30R21 = 26.8x9.6R21
295/25R21 = 26.8x11.6R21
27" Tire Diameter
245/35R21 = 27.8x9.6R21
255/30R21 = 27x10R21
265/30R21 = 27.3x10.4R21
275/30R21 = 27.5x10.8R21
285/30R21 = 27.7x11.2R21
305/25R21 = 27x12R21
325/25R21 = 27.4x12.8R21
28" Tire Diameter
245/40R21 = 28.7x9.6R21
255/35R21 = 28X10R21
265/35R21 = 28.3x10.4R21
275/35R21 = 28.6x10.8R21
285/35R21 = 28.9x11.2R21
295/30R21 = 28x11.6R21
305/30R21 = 28.2x12R21
315/30R21 = 28.4X12.4R21
325/30R21 = 28.7x12.8R21
355/25R21 = 28x14R21
29" Tire Diameter
245/45R21 = 29.
7X9.6R21
255/40R21 = 29X10R21
265/40R21 = 29.3x10.4R21
275/40R21 = 29.7x10.8R21
295/35R21 = 29.1x11.6R21
305/35R21 = 29.4X12R21
315/35R21 = 29.7X12.4R21
30" Tire Diameter
265/45R21 = 30.4x10.4R21
275/45R21 = 30.7x10.8R21
285/40R21 = 30X11.2R21
295/40R21 = 30.3x11.6R21
315/40R21 = 30.9X12.4R21
31" Tire Diameter
255/50R21 = 31x10R21
275/50R21 = 31.8X10.8R21
285/45R21 = 31.1x11.2R21
325/40R21 = 31.2X12.8R21
Tire Size Calculator Chart for 22" Wheels
27" Tire Diameter
235/30R22 = 27.6x9.3R22
245/30R22 = 27.8x9.6R22
275/25R22 = 27.4x10.8R22
285/25R22 = 27.6x11.2R22
295/25R22 = 27.8x11.6R22
28" Tire Diameter
255/30R22 = 28x10R22
265/30R22 = 28.3x10.4R22
275/30R22 = 28.5X10.8R22
285/30R22 = 28.7x11.2R22
305/25R22 = 28x12R22
315/25R22 = 28.2x12.4R22
335/25R22 = 28.6x13.2R22
29" Tire Diameter
255/35R22 = 29x10R22
265/35R22 = 29.
3x10.4R22
275/35R22 = 29.6X10.8R22
285/35R22 = 29.9x11.2R22
295/30R22 = 29x11.6R22
305/30R22 = 29.2x12R22
315/30R22 = 29.4X12.4R22
30" Tire Diameter
255/40R22 = 30X10R22
265/40R22 = 30.3x10.4R22
275/40R22 = 30.7x10.8R22
295/35R22 = 30.1X11.6R22
305/35R22 = 30.4X12R22
315/35R22 = 30.7X12.4R22
31" Tire Diameter
255/45R22 = 31X10R22
265/45R22 = 31.4X10.4R22
275/45R22 = 31.7x10.8R22
285/40R22 = 31x11.2R22
295/40R22 = 31.3x11.6R22
305/40R22 = 31.6x12R22
325/35R22 = 31X12.8R22
32" Tire Diameter
275/50R22 = 32.8x10.8R22
285/45R22 = 32.1x11.2R22
305/45R22 = 32.8x12R22
33" Tire Diameter
285/50R22 = 33.2x11.2R22
33X12.5R22
33X14.5R22
355/40R22 = 33.2X14R22
34" Tire Diameter
285/55R22 = 34.3X11.2R22
295/55R22 = 34.8X11.6R22
305/50R22 = 34x12R22
325/50R22 = 34.8x12.8R22
35" Tire Diameter
35X12.
5R22
35X14.5R22
35X15.5R22
375/45R22 = 35.3X14.8R22
36" Tire Diameter
325/55R22 = 36.1x12.8R22
335/55R22 = 36.5X13.2R22
37" Tire Diameter
325/60R22 = 37.4x12.8R22
37X12.5R22
37X13.5R22
38" Tire Diameter
355/60R22 = 38.8x14R22
38X13.5R22
38X15.5R22
40" Tire Diameter
40X14.5R22
40X15.5R22
41" Tire Diameter
41X14.5R22
42" Tire Diameter
42.5X13.5R22
Tire Size Calculator Chart for 23" Wheels
28" Tire Diameter
265/25R23 = 28.2X10.4R23
30" Tire Diameter
285/35R23 = 30.9x11.2R23
325/30R23 = 30.7X12.8R23
31" Tire Diameter
275/40R23 = 31.7X10.8R23
32" Tire Diameter
285/40R23 = 32x11.2R23
305/40R23 = 32.6x12R23
325/35R23 = 32X12.8R23
Tire Size Calculator Chart for 24" Wheels
29" Tire Diameter
275/25R24 = 29.4x10.8R24
30" Tire Diameter
255/30R24 = 30x10R24
275/30R24 = 30.
5x10.8R24
285/30R24 = 30.7x11.2R24
31" Tire Diameter
285/35R24 = 31.9x11.2R24
295/30R24 = 31X11.6R24
32" Tire Diameter
295/35R24 = 32.1x11.6R24
305/35R24 = 32.4x12R24
315/35R24 = 32.7x12.4R24
405/25R24 = 32x15.9R24
33" Tire Diameter
285/40R24 = 33x11.2R24
295/40R24 = 33.3x11.6R24
34" Tire Diameter
385/35R24 = 34.6x15.2R24
35" Tire Diameter
325/45R24 = 35.5x12.8R24
35X12.5R24
35X13.5R24
375/40R24 = 35.8X14.8R24
36" Tire Diameter
315/50R24 = 36.4X12.4R24
37" Tire Diameter
37X13.5R24
37X14.5R24
38" Tire Diameter
38X13.5R24
38X14R24
38X15.5R24
40" Tire Diameter
40X13.5R24
40X14.5R24
40X15.5R24
42" Tire Diameter
42X15.5R24
Tire Size Calculator Chart for 26" Wheels
31" Tire Diameter
275/25R26 = 31.4x10.8R26
295/25R26 = 31.
8x11.6R26
33" Tire Diameter
295/30R26 = 33x11.6R26
305/30R26 = 33.2x12R26
35" Tire Diameter
315/40R26 = 35.9x12.4R26
37" Tire Diameter
37X13.5R26
38" Tire Diameter
38X15.5R26
40" Tire Diameter
40X13.5R26
40X15.5R26
42" Tire Diameter
42X15.5R26
Tire Size Calculator Chart for 28" Wheels
33" Tire Diameter
295/25R28 = 33.8x11.6R28
37" Tire Diameter
325/35R28 = 37x12.8R28
40" Tire Diameter
40X15.5R28
42" Tire Diameter
42X15.5R28
Tire Size Calculator Chart for 30" Wheels
37" Tire Diameter
315/30R30 = 37.4x12.4R30
Tyre Size Calculator
Tyre Size Calculator Chart for 13" Wheels
21" Tire Diameter
185/60R13 = 21.7x7.3R13
215/50R13 = 21.5X8.5R13
225/45R13 = 21x8.9R13
225/50R13 = 21.9x8.9R13
255/40R13 = 21x10R13
22" Tire Diameter
155/80R13 = 22.
8x6.1R13
175/70R13 = 22.6x6.9R13
205/60R13 = 22.7x8.1R13
22X8R13
23" Tire Diameter
165/80R13 = 23.4X6.5R13
185/70R13 = 23.2x7.3R13
24" Tire Diameter
175/80R13 = 24x6.9R13
185/80R13 = 24.7x7.3R13
24.5X8R13
24.5X9R13
Tyre Size Calculator Chart for 14" Wheels
19" Tire Diameter
105/70R14 = 19.8X4.1R14
20" Tire Diameter
115/70R14 = 20.3X4.5R14
125/70R14 = 20.9X4.9R14
21" Tire Diameter
165/55R14 = 21.1X6.5R14
22" Tire Diameter
135/80R14 = 22.5X5.3R14
165/65R14 = 22.4x6.5R14
185/55R14 = 22x7.3R14
185/60R14 = 22.7x7.3R14
195/55R14 = 22.4x7.7R14
205/50R14 = 22.1x8.1R14
205/55R14 = 22.9x8.1R14
225/50R14 = 22.9x8.9R14
23" Tire Diameter
175/65R14 = 23x6.9R14
175/70R14 = 23.6x6.9R14
185/65R14 = 23.5x7.3R14
195/60R14 = 23.2x7.7R14
205/60R14 = 23.7x8.1R14
24" Tire Diameter
185/70R14 = 24.
2x7.3R14
185/75R14 = 24.9X7.3R14
195/65R14 = 24x7.7R14
195/70R14 = 24.7x7.7R14
215/60R14 = 24.2x8.5R14
225/60R14 = 24.6x8.9R14
25" Tire Diameter
185R14 = 25.7x7.3R14
195/75R14 = 25.5x7.7R14
205/70R14 = 25.3x8.1R14
215/70R14 = 25.9x8.5R14
235/60R14 = 25.1x9.3R14
245/60R14 = 25.6x9.6R14
26" Tire Diameter
195R14 = 26.2x7.8R14
205/75R14 = 26.1x8.1R14
215/75R14 = 26.7x8.5R14
225/70R14 = 26.4x8.9R14
26X8.5R14
27" Tire Diameter
205R14 = 27x8.2R14
27X8.5R14
27X9.5R14
28" Tire Diameter
28X10R14
30" Tire Diameter
30X10R14
Tyre Size Calculator Chart for 15" Wheels
20" Tire Diameter
105/70R15 = 20.8X4.1R15
21" Tire Diameter
115/70R15 = 21.3X4.5R15
125/70R15 = 21.9X4.9R15
165/50R15 = 21.5X6.5R15
195/45R15 = 21.9x7.7R15
22" Tire Diameter
125/80R15 = 22.9X4.9R15
145/65R15 = 22.
4x5.7R15
155/60R15 = 22.3x6.1R15
165/60R15 = 22.8x6.5R15
175/55R15 = 22.6x6.9R15
195/50R15 = 22.7x7.7R15
22X8R15
22.5X4.5R15
245/40R15 = 22.7X9.6R15
275/35R15 = 22.6x10.8R15
23" Tire Diameter
135/80R15 = 23.5X5.3R15
165/65R15 = 23.4X6.5R15
175/60R15 = 23.3x6.9R15
185/55R15 = 23x7.3R15
185/60R15 = 23.7x7.3R15
195/55R15 = 23.4x7.7R15
205/50R15 = 23.1x8.1R15
205/55R15 = 23.9x8.1R15
225/45R15 = 23x8.9R15
225/50R15 = 23.9x8.9R15
295/35R15 = 23.1X11.6R15
24" Tire Diameter
135/90R15 = 24.6X5.3R15
155/80R15 = 24.8X6.1R15
175/65R15 = 24x6.9R15
185/65R15 = 24.5x7.3R15
195/60R15 = 24.2x7.7R15
205/60R15 = 24.7x8.1R15
225/55R15 = 24.7x8.9R15
235/50R15 = 24.3x9.3R15
24X4.5R15
24X5R15
24.5X8R15
245/50R15 = 24.6x9.6R15
345/35R15 = 24.5x13.6R15
25" Tire Diameter
165/80R15 = 25.4X6.5R15
185/70R15 = 25.2x7.3R15
195/65R15 = 25x7.
7R15
195/70R15 = 25.7x7.7R15
205/65R15 = 25.5x8.1R15
215/60R15 = 25.2x8.5R15
225/60R15 = 25.6x8.9R15
265/50R15 = 25.4X10.4R15
275/50R15 = 25.8x10.8R15
26" Tire Diameter
205/70R15 = 26.3x8.1R15
215/65R15 = 26x8.5R15
215/70R15 = 26.9x8.5R15
235/60R15 = 26.1x9.3R15
245/60R15 = 26.6x9.6R15
26X10R15
26X10.5R15
26X11.5R15
26X6R15
26X7.5R15
26X8R15
26X8.5R15
295/50R15 = 26.6x11.6R15
27" Tire Diameter
205/75R15 = 27.1x8.1R15
215/75R15 = 27.7x8.5R15
225/70R15 = 27.4x8.9R15
255/60R15 = 27x10R15
27X10.5R15
27X9.5R15
27.5X4.5R15
295/55R15 = 27.8X11.6R15
325/50R15 = 27.8x12.8R15
E78-15 = 27x6.5R15
28" Tire Diameter
225/75R15 = 28.3x8.9R15
235/70R15 = 28x9.3R15
235/75R15 = 28.9x9.3R15
245/70R15 = 28.5X9.6R15
255/65R15 = 28.1x10R15
275/60R15 = 28x10.8R15
28X10.5R15
28X11.5R15
28X12.5R15
28X13.5R15
28X4.
5R15
28X7.5R15
28X9R15
29" Tire Diameter
215/85R15 = 29.4X8.5R15
255/70R15 = 29.1x10R15
265/70R15 = 29.6x10.4R15
29X10.5R15
29X11.5R15
29X12.5R15
29X15.5R15
29X18R15
29X18.5R15
29X4.5R15
29X8.5R15
29.5X11.5R15
29.5X13.5R15
29.5X9R15
315/60R15 = 29.9x12.4R15
7R15 = 29.5x7.7R15
30" Tire Diameter
255/75R15 = 30.1x10R15
265/75R15 = 30.6x10.4R15
295/65R15 = 30.1x11.6R15
30X10R15
30X10.5R15
30X11.5R15
30X12.5R15
30X13.5R15
30X7R15
30X9R15
30X9.5R15
31" Tire Diameter
31X10.5R15
31X11R15
31X11.5R15
31X12.5R15
31X13R15
31X13.5R15
31X14.5R15
31X16.5R15
31X18R15
31X18.5R15
31X9.5R15
32" Tire Diameter
32X10.5R15
32X11.5R15
32X14R15
32X16R15
32X17.5R15
32X18.5R15
32X9.5R15
33" Tire Diameter
33X10.5R15
33X11.5R15
33X12.5R15
33X13R15
33X13.
5R15
33X14R15
33X14.5R15
33X15.5R15
33X16.5R15
33X19.5R15
33X21.5R15
33X9R15
33X9.5R15
34" Tire Diameter
34X10.5R15
34X12.5R15
34X9.5R15
35" Tire Diameter
35X10.5R15
35X12.5R15
35X13.5R15
35X14.5R15
35X15R15
35X15.5R15
35X16R15
36" Tire Diameter
36X12.5R15
36X13.5R15
36X14.5R15
37" Tire Diameter
37X12.5R15
37X13R15
37X13.5R15
37X14R15
37X14.5R15
38" Tire Diameter
38X12.5R15
38X13R15
38X14.5R15
38X15.5R15
38.5X11R15
38.5X13.5R15
38.5X14.5R15
38.5X15R15
38.5X16R15
39" Tire Diameter
39X13.5R15
39.5X13.5R15
39.5X15R15
39.5X18R15
40" Tire Diameter
40X16R15
42" Tire Diameter
42X14R15
42X15R15
42.5X13.5R15
44" Tire Diameter
44X18.5R15
44X19.5R15
44X21R15
47" Tire Diameter
47X17R15
Tyre Size Calculator Chart for 16" Wheels
22" Tire Diameter
125/70R16 = 22.
9X4.9R16
175/50R16 = 22.9x6.9R16
195/40R16 = 22.1x7.7R16
195/45R16 = 22.9x7.7R16
205/40R16 = 22.5x8.1R16
215/35R16 = 21.9x8.5R16
215/40R16 = 22.8x8.5R16
23" Tire Diameter
125/80R16 = 23.9X4.9R16
135/70R16 = 23.4X5.3R16
175/55R16 = 23.6x6.9R16
185/50R16 = 23.3X7.3R16
195/50R16 = 23.7x7.7R16
205/45R16 = 23.3x8.1R16
215/45R16 = 23.6x8.5R16
24" Tire Diameter
125/85R16 = 24.4X4.9R16
125/90R16 = 24.9X4.9R16
135/80R16 = 24.5X5.3R16
175/60R16 = 24.3x6.9R16
185/55R16 = 24x7.3R16
185/60R16 = 24.7X7.3R16
195/55R16 = 24.4x7.7R16
205/50R16 = 24.1x8.1R16
205/55R16 = 24.9x8.1R16
215/50R16 = 24.5X8.5R16
225/45R16 = 24x8.9R16
225/50R16 = 24.9x8.9R16
245/45R16 = 24.7x9.6R16
25" Tire Diameter
135/90R16 = 25.6X5.3R16
145/80R16 = 25.1X5.7R16
195/60R16 = 25.2x7.7R16
205/60R16 = 25.7x8.1R16
215/55R16 = 25.3x8.5R16
225/55R16 = 25.7x8.9R16
245/50R16 = 25.
6x9.6R16
265/45R16 = 25.4X10.4R16
275/45R16 = 25.7x10.8R16
315/40R16 = 25.9X12.4R16
26" Tire Diameter
145/90R16 = 26.3X5.7R16
145/90R16 = 26.3X5.7R16
195/65R16 = 26X7.7R16
205/65R16 = 26.5x8.1R16
215/60R16 = 26.2x8.5R16
225/60R16 = 26.6x8.9R16
235/55R16 = 26.2x9.3R16
255/50R16 = 26x10R16
26X11.5R16
27" Tire Diameter
155/90R16 = 27X6.1R16
195/75R16 = 27.5x7.7R16
205/70R16 = 27.3x8.1R16
215/65R16 = 27x8.5R16
215/70R16 = 27.9x8.5R16
225/65R16 = 27.5x8.9R16
235/60R16 = 27.1x9.3R16
295/50R16 = 27.6x11.6R16
355/40R16 = 27.2X14R16
28" Tire Diameter
195/80R16 = 28.3x7.7R16
205/75R16 = 28.1X8.1R16
205/80R16 = 28.9x8.1R16
215/75R16 = 28.7x8.5R16
225/70R16 = 28.4x8.9R16
235/65R16 = 28x9.3R16
255/60R16 = 28x10R16
28X11.5R16
29" Tire Diameter
225/75R16 = 29.3x8.9R16
235/70R16 = 29x9.3R16
235/75R16 = 29.9x9.3R16
245/70R16 = 29.
5x9.6R16
255/65R16 = 29.1x10R16
275/60R16 = 29X10.8R16
285/60R16 = 29.5X11.2R16
30" Tire Diameter
215/85R16 = 30.4x8.5R16
235/80R16 = 30.8x9.3R16
245/75R16 = 30.5x9.6R16
255/70R16 = 30.1x10R16
265/70R16 = 30.6x10.4R16
285/65R16 = 30.6X11.2R16
30X11.5R16
31" Tire Diameter
225/85R16 = 31.1X8.9R16
235/85R16 = 31.7x9.3R16
265/75R16 = 31.6x10.4R16
275/70R16 = 31.2x10.8R16
285/70R16 = 31.7x11.2R16
31X10.5R16
31X11R16
31X11.5R16
31X12.5R16
7.5R16 = 31.8x8.7R16
32" Tire Diameter
265/80R16 = 32.7X10.4R16
285/75R16 = 32.8x11.2R16
305/70R16 = 32.8x12R16
32X10R16
32X11.5R16
32X9R16
33" Tire Diameter
255/85R16 = 33.1x10R16
295/75R16 = 33.4x11.6R16
33X10.5R16
33X11.5R16
33X12.5R16
33X13R16
33X13.5R16
33X14R16
33X14.5R16
33X9.5R16
33.5X16.5R16
34" Tire Diameter
315/75R16 = 34.
6x12.4R16
34X10.5R16
34X12.5R16
34X13.5R16
34X9R16
34.5X17R16
35" Tire Diameter
35X10.5R16
35X12.5R16
35X14.5R16
35X15R16
35X16R16
375/65R16 = 35.2x14.8R16
36" Tire Diameter
325/80R16 = 36.5x12.8R16
345/75R16 = 36.4x13.6R16
36X12.5R16
36X13R16
36X13.5R16
36X14.5R16
37" Tire Diameter
365/75R16 = 37.6x14.4R16
37X12.5R16
37X13R16
37X13.5R16
37X14R16
37X14.5R16
385/70R16 = 37.2x15.2R16
395/70R16 = 37.8x15.6R16
38" Tire Diameter
38X13R16
38X14.5R16
38X15.5R16
38.5X11R16
38.5X13.5R16
38.5X14.5R16
38.5X15R16
39" Tire Diameter
39X13.5R16
39.5X13.5R16
39.5X15R16
40" Tire Diameter
40X16R16
41" Tire Diameter
41X14.5R16
42" Tire Diameter
42X14R16
42X15R16
42.5X13.5R16
44" Tire Diameter
44X19.5R16
44X21R16
46" Tire Diameter
46X19.
5R16
Tyre Size Calculator Chart for 16.5" Wheels
29" Tire Diameter
8.75R16.5 = 29.5x8.8R16.5
30" Tire Diameter
9.5R16.5 = 30.6x9.5R16.5
32" Tire Diameter
32X12R16.5
33" Tire Diameter
33X11.5R16.5
33X12.5R16.5
33X14R16.5
33X14.5R16.5
33X15.5R16.5
35" Tire Diameter
35X12.5R16.5
35X14.5R16.5
35X15R16.5
35X15.5R16.5
35X16R16.5
35X9.5R16.5
36" Tire Diameter
36X12.5R16.5
36X13.5R16.5
36X14.5R16.5
36X16R16.5
37" Tire Diameter
37X12.5R16.5
37X13R16.5
37X14R16.5
38" Tire Diameter
38X11R16.5
38X12.5R16.5
38X15.5R16.5
38.5X11R16.5
38.5X13.5R16.5
38.5X14.5R16.5
38.5X15R16.5
38.5X16R16.5
39" Tire Diameter
39X13.5R16.5
39.5X13.5R16.5
39.5X15R16.5
39.5X18R16.5
42" Tire Diameter
42X14R16.5
42X15R16.5
42.
5X13.5R16.5
43" Tire Diameter
43X14.5R16.5
44" Tire Diameter
44X18.5R16.5
44X18.5R16.5
44X19.5R16.5
44X21R16.5
47" Tire Diameter
47X17R16.5
48" Tire Diameter
48X12.5R16.5
49" Tire Diameter
49X21R16.5
Tyre Size Calculator Chart for 17" Wheels
22" Tire Diameter
22X2.5R17
23" Tire Diameter
125/70R17 = 23.9X4.9R17
195/40R17 = 23.1x7.7R17
195/45R17 = 23.9x7.7R17
205/40R17 = 23.5x8.1R17
215/35R17 = 22.9x8.5R17
215/40R17 = 23.8x8.5R17
225/35R17 = 23.2x8.9R17
245/35R17 = 23.8x9.6R17
24" Tire Diameter
125/80R17 = 24.9X4.9R17
135/70R17 = 24.4X5.3R17
205/45R17 = 24.3x8.1R17
215/45R17 = 24.6x8.5R17
225/40R17 = 24.1x8.9R17
235/40R17 = 24.4x9.3R17
245/40R17 = 24.7x9.6R17
275/35R17 = 24.6x10.8R17
25" Tire Diameter
115/95R17 = 25.6X4.5R17
135/80R17 = 25.
5X5.3R17
145/70R17 = 25X5.7R17
155/70R17 = 25.5X6.1R17
205/50R17 = 25.1x8.1R17
205/55R17 = 25.9x8.1R17
215/50R17 = 25.5X8.5R17
225/45R17 = 25x8.9R17
225/50R17 = 25.9x8.9R17
235/45R17 = 25.3x9.3R17
245/45R17 = 25.7x9.6R17
255/40R17 = 25x10R17
265/40R17 = 25.3x10.4R17
275/40R17 = 25.7x10.8R17
295/35R17 = 25.1x11.6R17
315/35R17 = 25.7x12.4R17
26" Tire Diameter
135/90R17 = 26.6X5.3R17
145/80R17 = 26.1X5.7R17
155/80R17 = 26.8X6.1R17
215/55R17 = 26.3x8.5R17
225/55R17 = 26.7x8.9R17
235/50R17 = 26.3x9.3R17
245/50R17 = 26.6x9.6R17
255/45R17 = 26x10R17
26X11.5R17
285/40R17 = 26x11.2R17
295/40R17 = 26.3x11.6R17
335/35R17 = 26.2x13.2R17
27" Tire Diameter
145/90R17 = 27.3X5.7R17
165/80R17 = 27.4X6.5R17
215/60R17 = 27.2x8.5R17
225/60R17 = 27.6x8.9R17
235/55R17 = 27.2x9.3R17
245/55R17 = 27.6x9.6R17
255/50R17 = 27x10R17
275/50R17 = 27.8X10.
8R17
305/45R17 = 27.8X12R17
345/40R17 = 27.9x13.6R17
28" Tire Diameter
155/90R17 = 28X6.1R17
165/90R17 = 28.7X6.5R17
215/65R17 = 28x8.5R17
215/70R17 = 28.9x8.5R17
225/65R17 = 28.5x8.9R17
235/60R17 = 28.1x9.3R17
245/60R17 = 28.6X9.6R17
255/55R17 = 28x10R17
275/55R17 = 28.9x10.8R17
29" Tire Diameter
175/90R17 = 29.4X6.9R17
225/70R17 = 29.4x8.9R17
235/65R17 = 29x9.3R17
245/65R17 = 29.5x9.6R17
255/60R17 = 29x10R17
265/60R17 = 29.5x10.4R17
30" Tire Diameter
225/75R17 = 30.3x8.9R17
235/70R17 = 30x9.3R17
235/75R17 = 30.9x9.3R17
245/70R17 = 30.5x9.6R17
255/65R17 = 30.1x10R17
265/65R17 = 30.6x10.4R17
275/60R17 = 30x10.8R17
285/60R17 = 30.5X11.2R17
31" Tire Diameter
235/80R17 = 31.8x9.3R17
245/75R17 = 31.5x9.6R17
255/70R17 = 31.1x10R17
265/70R17 = 31.6x10.4R17
275/65R17 = 31.1x10.8R17
285/65R17 = 31.6x11.2R17
31X10.
5R17
32" Tire Diameter
235/85R17 = 32.7X9.3R17
255/75R17 = 32.1x10R17
275/70R17 = 32.2x10.8R17
285/70R17 = 32.7x11.2R17
305/65R17 = 32.6x12R17
32X10.5R17
32X11.5R17
33" Tire Diameter
255/80R17 = 33.1x10R17
285/75R17 = 33.8x11.2R17
295/70R17 = 33.3x11.6R17
305/70R17 = 33.8x12R17
33X10.5R17
33X12.5R17
33X13R17
33X13.5R17
33X9.5R17
34" Tire Diameter
275/80R17 = 34.3X10.8R17
315/70R17 = 34.4x12.4R17
325/70R17 = 34.9x12.8R17
34X10.5R17
35" Tire Diameter
35X10.5R17
35X11.5R17
35X12.5R17
35X13.5R17
35X14.5R17
36" Tire Diameter
355/70R17 = 36.6x14R17
36X12.5R17
36X13.5R17
37" Tire Diameter
37X12.5R17
37X13R17
37X13.5R17
37X14R17
38" Tire Diameter
38X13.5R17
38X14.5R17
38X15.5R17
38.5X13.5R17
38.5X14.5R17
39" Tire Diameter
39X13.
5R17
39.5X13.5R17
39.5X15R17
40" Tire Diameter
40X13.5R17
40X14.5R17
40X16R17
41" Tire Diameter
41X14.5R17
42" Tire Diameter
42X14R17
42X14.5R17
42X15R17
42.5X13.5R17
43" Tire Diameter
43X14.5R17
44" Tire Diameter
44X19.5R17
44X21R17
47" Tire Diameter
47X17R17
49" Tire Diameter
49X21R17
54" Tire Diameter
54X19.5R17
Tyre Size Calculator Chart for 18" Wheels
23" Tire Diameter
215/35R18 = 23.9x8.5R18
24" Tire Diameter
125/70R18 = 24.9X4.9R18
205/40R18 = 24.5x8.1R18
215/40R18 = 24.8x8.5R18
225/35R18 = 24.2x8.9R18
235/35R18 = 24.5x9.3R18
245/35R18 = 24.8x9.6R18
285/30R18 = 24.7x11.2R18
25" Tire Diameter
135/70R18 = 25.4X5.3R18
155/60R18 = 25.3X6.1R18
215/45R18 = 25.6x8.5R18
225/40R18 = 25.1x8.9R18
235/40R18 = 25.
4x9.3R18
245/40R18 = 25.7x9.6R18
255/35R18 = 25x10R18
265/35R18 = 25.3x10.4R18
275/35R18 = 25.6x10.8R18
285/35R18 = 25.9x11.2R18
295/30R18 = 25x11.6R18
305/30R18 = 25.2x12R18
315/30R18 = 25.4x12.4R18
335/30R18 = 25.9x13.2R18
26" Tire Diameter
135/80R18 = 26.5X5.3R18
145/70R18 = 26X5.7R18
215/50R18 = 26.5X8.5R18
225/45R18 = 26x8.9R18
225/50R18 = 26.9x8.9R18
235/45R18 = 26.3x9.3R18
245/45R18 = 26.7x9.6R18
255/40R18 = 26x10R18
26X12R18
265/40R18 = 26.3x10.4R18
275/40R18 = 26.7x10.8R18
295/35R18 = 26.1x11.6R18
305/35R18 = 26.4x12R18
315/35R18 = 26.7x12.4R18
345/30R18 = 26.1x13.6R18
27" Tire Diameter
145/80R18 = 27.1X5.7R18
145/85R18 = 27.7X5.7R18
215/55R18 = 27.3x8.5R18
225/55R18 = 27.7x8.9R18
235/50R18 = 27.3x9.3R18
245/50R18 = 27.6x9.6R18
255/45R18 = 27x10R18
265/45R18 = 27.4x10.4R18
275/45R18 = 27.7x10.8R18
285/40R18 = 27x11.
2R18
295/40R18 = 27.3x11.6R18
305/40R18 = 27.6X12R18
315/40R18 = 27.9x12.4R18
325/35R18 = 27x12.8R18
345/35R18 = 27.5x13.6R18
28" Tire Diameter
155/85R18 = 28.4X6.1R18
225/60R18 = 28.6x8.9R18
235/55R18 = 28.2x9.3R18
245/55R18 = 28.6x9.6R18
255/50R18 = 28x10R18
265/50R18 = 28.4X10.4R18
285/45R18 = 28.1x11.2R18
295/45R18 = 28.5x11.6R18
305/45R18 = 28.8X12R18
29" Tire Diameter
155/90R18 = 29X6.1R18
165/90R18 = 29.7X6.5R18
225/65R18 = 29.5X8.9R18
235/60R18 = 29.1x9.3R18
245/60R18 = 29.6x9.6R18
255/55R18 = 29x10R18
265/55R18 = 29.5X10.4R18
275/55R18 = 29.9x10.8R18
285/50R18 = 29.2x11.2R18
325/45R18 = 29.5X12.8R18
30" Tire Diameter
175/90R18 = 30.4X6.9R18
235/65R18 = 30x9.3R18
245/65R18 = 30.5x9.6R18
255/60R18 = 30x10R18
265/60R18 = 30.5x10.4R18
285/55R18 = 30.3x11.2R18
31" Tire Diameter
235/70R18 = 31X9.3R18
255/65R18 = 31.
1x10R18
265/65R18 = 31.6x10.4R18
275/60R18 = 31x10.8R18
285/60R18 = 31.5x11.2R18
32" Tire Diameter
255/70R18 = 32.1x10R18
265/70R18 = 32.6x10.4R18
275/65R18 = 32.1x10.8R18
285/65R18 = 32.6x11.2R18
305/60R18 = 32.4x12R18
33" Tire Diameter
275/70R18 = 33.2x10.8R18
285/70R18 = 33.7x11.2R18
295/65R18 = 33.1x11.6R18
305/65R18 = 33.6x12R18
325/60R18 = 33.4x12.8R18
33X10.5R18
33X11.5R18
33X12.5R18
33X13R18
33X13.5R18
34" Tire Diameter
285/75R18 = 34.8x11.2R18
295/70R18 = 34.3X11.6R18
305/70R18 = 34.8x12R18
325/65R18 = 34.6x12.8R18
34X12.5R18
35" Tire Diameter
315/70R18 = 35.4x12.4R18
35X11.5R18
35X12.5R18
35X13R18
35X13.5R18
35X14.5R18
36" Tire Diameter
355/65R18 = 36.2x14R18
36X13.5R18
37" Tire Diameter
37X11.5R18
37X12.5R18
37X13.5R18
38" Tire Diameter
38X13.
5R18
38X14.5R18
38X15R18
38X15.5R18
38.5X14.5R18
40" Tire Diameter
40X13.5R18
40X14.5R18
41" Tire Diameter
41X14.5R18
Tyre Size Calculator Chart for 19" Wheels
24" Tire Diameter
215/35R19 = 24.9x8.5R19
235/30R19 = 24.6x9.3R19
245/30R19 = 24.8x9.6R19
295/25R19 = 24.8X11.6R19
25" Tire Diameter
115/70R19 = 25.3X4.5R19
125/70R19 = 25.9X4.9R19
225/35R19 = 25.2x8.9R19
235/35R19 = 25.5x9.3R19
245/35R19 = 25.8x9.6R19
255/30R19 = 25x10R19
265/30R19 = 25.3x10.4R19
275/30R19 = 25.5x10.8R19
285/30R19 = 25.7x11.2R19
315/25R19 = 25.2x12.4R19
26" Tire Diameter
135/70R19 = 26.4X5.3R19
225/40R19 = 26.1x8.9R19
235/40R19 = 26.4x9.3R19
245/40R19 = 26.7x9.6R19
255/35R19 = 26x10R19
265/35R19 = 26.3x10.4R19
275/35R19 = 26.6x10.8R19
285/35R19 = 26.9x11.2R19
295/30R19 = 26x11.6R19
305/30R19 = 26.2x12R19
315/30R19 = 26.
4x12.4R19
325/30R19 = 26.7x12.8R19
335/30R19 = 26.9x13.2R19
27" Tire Diameter
155/70R19 = 27.5x6.1R19
175/60R19 = 27.3x6.9R19
225/45R19 = 27x8.9R19
235/45R19 = 27.3x9.3R19
245/45R19 = 27.7x9.6R19
255/40R19 = 27x10R19
265/40R19 = 27.3x10.4R19
275/40R19 = 27.7x10.8R19
295/35R19 = 27.1x11.6R19
305/35R19 = 27.4X12R19
315/35R19 = 27.7x12.4R19
345/30R19 = 27.1x13.6R19
355/30R19 = 27.4x14R19
28" Tire Diameter
145/80R19 = 28.1X5.7R19
155/80R19 = 28.8X6.1R19
225/55R19 = 28.7x8.9R19
235/50R19 = 28.3x9.3R19
245/50R19 = 28.6x9.6R19
255/45R19 = 28x10R19
265/45R19 = 28.4X10.4R19
275/45R19 = 28.7x10.8R19
285/40R19 = 28x11.2R19
295/40R19 = 28.3X11.6R19
315/40R19 = 28.9x12.4R19
345/35R19 = 28.5x13.6R19
29" Tire Diameter
235/55R19 = 29.2x9.3R19
245/55R19 = 29.6x9.6R19
255/50R19 = 29x10R19
265/50R19 = 29.4x10.4R19
275/50R19 = 29.8X10.
8R19
285/45R19 = 29.1x11.2R19
295/45R19 = 29.5x11.6R19
30" Tire Diameter
165/90R19 = 30.7X6.5R19
175/80R19 = 30X6.9R19
255/55R19 = 30x10R19
265/55R19 = 30.5x10.4R19
275/55R19 = 30.9x10.8R19
31" Tire Diameter
235/65R19 = 31X9.3R19
255/60R19 = 31x10R19
Tyre Size Calculator Chart for 20" Wheels
25" Tire Diameter
215/30R20 = 25.1X8.5R20
225/30R20 = 25.3x8.9R20
235/30R20 = 25.6x9.3R20
245/30R20 = 25.8x9.6R20
275/25R20 = 25.4X10.8R20
285/25R20 = 25.6x11.2R20
295/25R20 = 25.8x11.6R20
26" Tire Diameter
145/60R20 = 26.9X5.7R20
225/35R20 = 26.2x8.9R20
235/35R20 = 26.5x9.3R20
245/35R20 = 26.8x9.6R20
255/30R20 = 26x10R20
265/30R20 = 26.3x10.4R20
275/30R20 = 26.5x10.8R20
285/30R20 = 26.7x11.2R20
305/25R20 = 26x12R20
315/25R20 = 26.2x12.4R20
325/25R20 = 26.4x12.8R20
335/25R20 = 26.6x13.2R20
345/25R20 = 26.8X13.6R20
27" Tire Diameter
155/60R20 = 27.
3x6.1R20
155/65R20 = 27.9X6.1R20
165/60R20 = 27.8X6.5R20
175/55R20 = 27.6x6.9R20
195/50R20 = 27.7x7.7R20
215/45R20 = 27.6x8.5R20
225/40R20 = 27.1X8.9R20
235/40R20 = 27.4x9.3R20
245/40R20 = 27.7x9.6R20
255/35R20 = 27x10R20
265/35R20 = 27.3x10.4R20
275/35R20 = 27.6x10.8R20
285/35R20 = 27.9x11.2R20
295/30R20 = 27x11.6R20
305/30R20 = 27.2x12R20
315/30R20 = 27.4x12.4R20
325/30R20 = 27.7x12.8R20
335/30R20 = 27.9x13.2R20
28" Tire Diameter
225/45R20 = 28X8.9R20
235/45R20 = 28.3x9.3R20
245/45R20 = 28.7x9.6R20
255/40R20 = 28x10R20
265/40R20 = 28.3x10.4R20
275/40R20 = 28.7x10.8R20
295/35R20 = 28.1x11.6R20
305/35R20 = 28.4x12R20
315/35R20 = 28.7x12.4R20
345/30R20 = 28.1x13.6R20
29" Tire Diameter
235/50R20 = 29.3X9.3R20
245/50R20 = 29.6x9.6R20
255/45R20 = 29x10R20
265/45R20 = 29.4x10.4R20
275/45R20 = 29.7x10.8R20
285/40R20 = 29x11.2R20
295/40R20 = 29.
3x11.6R20
305/40R20 = 29.6X12R20
325/35R20 = 29X12.8R20
30" Tire Diameter
235/55R20 = 30.2x9.3R20
255/50R20 = 30x10R20
265/50R20 = 30.4x10.4R20
275/50R20 = 30.8x10.8R20
285/45R20 = 30.1X11.2R20
295/45R20 = 30.5x11.6R20
305/45R20 = 30.8x12R20
31" Tire Diameter
245/60R20 = 31.6x9.6R20
255/55R20 = 31x10R20
275/55R20 = 31.9x10.8R20
285/50R20 = 31.2x11.2R20
295/50R20 = 31.6x11.6R20
31X18R20
32" Tire Diameter
265/60R20 = 32.5x10.4R20
285/55R20 = 32.3x11.2R20
295/55R20 = 32.8X11.6R20
305/50R20 = 32x12R20
315/50R20 = 32.4x12.4R20
325/50R20 = 32.8x12.8R20
33" Tire Diameter
275/60R20 = 33x10.8R20
285/60R20 = 33.5x11.2R20
295/60R20 = 33.9X11.6R20
305/55R20 = 33.2x12R20
33X11.5R20
33X12R20
33X12.5R20
33X13.5R20
34" Tire Diameter
275/65R20 = 34.1x10.8R20
285/65R20 = 34.6x11.2R20
305/60R20 = 34.4x12R20
315/60R20 = 34.
9x12.4R20
355/50R20 = 34X14R20
35" Tire Diameter
295/65R20 = 35.1X11.6R20
325/60R20 = 35.4x12.8R20
35X11.5R20
35X12.5R20
35X13R20
35X13.5R20
35X14.5R20
36" Tire Diameter
355/60R20 = 36.8x14R20
36X13.5R20
36X15.5R20
37" Tire Diameter
37X11.5R20
37X12.5R20
37X13.5R20
37X14.5R20
38" Tire Diameter
38X13.5R20
38X14.5R20
38X15.5R20
38.5X13.5R20
38.5X14.5R20
39" Tire Diameter
39X13.5R20
39.5X13.5R20
39.5X15R20
40" Tire Diameter
40X13.5R20
40X14.5R20
40X15.5R20
41" Tire Diameter
41X14.5R20
42" Tire Diameter
42X14.5R20
42X15R20
42.5X13.5R20
43" Tire Diameter
43X14.5R20
44" Tire Diameter
44X19.5R20
44X19.5R20
44X21R20
45" Tire Diameter
45X14.5R20
46" Tire Diameter
46X19.
5R20
49" Tire Diameter
49X21R20
54" Tire Diameter
54X19.5R20
Tyre Size Calculator Chart for 21" Wheels
26" Tire Diameter
245/30R21 = 26.8x9.6R21
295/25R21 = 26.8x11.6R21
27" Tire Diameter
245/35R21 = 27.8x9.6R21
255/30R21 = 27x10R21
265/30R21 = 27.3x10.4R21
275/30R21 = 27.5x10.8R21
285/30R21 = 27.7x11.2R21
305/25R21 = 27x12R21
325/25R21 = 27.4x12.8R21
28" Tire Diameter
245/40R21 = 28.7x9.6R21
255/35R21 = 28X10R21
265/35R21 = 28.3x10.4R21
275/35R21 = 28.6x10.8R21
285/35R21 = 28.9x11.2R21
295/30R21 = 28x11.6R21
305/30R21 = 28.2x12R21
315/30R21 = 28.4X12.4R21
325/30R21 = 28.7x12.8R21
355/25R21 = 28x14R21
29" Tire Diameter
245/45R21 = 29.7X9.6R21
255/40R21 = 29X10R21
265/40R21 = 29.3x10.4R21
275/40R21 = 29.7x10.8R21
295/35R21 = 29.1x11.6R21
305/35R21 = 29.4X12R21
315/35R21 = 29.
7X12.4R21
30" Tire Diameter
265/45R21 = 30.4x10.4R21
275/45R21 = 30.7x10.8R21
285/40R21 = 30X11.2R21
295/40R21 = 30.3x11.6R21
315/40R21 = 30.9X12.4R21
31" Tire Diameter
255/50R21 = 31x10R21
275/50R21 = 31.8X10.8R21
285/45R21 = 31.1x11.2R21
325/40R21 = 31.2X12.8R21
Tyre Size Calculator Chart for 22" Wheels
27" Tire Diameter
235/30R22 = 27.6x9.3R22
245/30R22 = 27.8x9.6R22
275/25R22 = 27.4x10.8R22
285/25R22 = 27.6x11.2R22
295/25R22 = 27.8x11.6R22
28" Tire Diameter
255/30R22 = 28x10R22
265/30R22 = 28.3x10.4R22
275/30R22 = 28.5X10.8R22
285/30R22 = 28.7x11.2R22
305/25R22 = 28x12R22
315/25R22 = 28.2x12.4R22
335/25R22 = 28.6x13.2R22
29" Tire Diameter
255/35R22 = 29x10R22
265/35R22 = 29.3x10.4R22
275/35R22 = 29.6X10.8R22
285/35R22 = 29.9x11.2R22
295/30R22 = 29x11.6R22
305/30R22 = 29.2x12R22
315/30R22 = 29.
4X12.4R22
30" Tire Diameter
255/40R22 = 30X10R22
265/40R22 = 30.3x10.4R22
275/40R22 = 30.7x10.8R22
295/35R22 = 30.1X11.6R22
305/35R22 = 30.4X12R22
315/35R22 = 30.7X12.4R22
31" Tire Diameter
255/45R22 = 31X10R22
265/45R22 = 31.4X10.4R22
275/45R22 = 31.7x10.8R22
285/40R22 = 31x11.2R22
295/40R22 = 31.3x11.6R22
305/40R22 = 31.6x12R22
325/35R22 = 31X12.8R22
32" Tire Diameter
275/50R22 = 32.8x10.8R22
285/45R22 = 32.1x11.2R22
305/45R22 = 32.8x12R22
33" Tire Diameter
285/50R22 = 33.2x11.2R22
33X12.5R22
33X14.5R22
355/40R22 = 33.2X14R22
34" Tire Diameter
285/55R22 = 34.3X11.2R22
295/55R22 = 34.8X11.6R22
305/50R22 = 34x12R22
325/50R22 = 34.8x12.8R22
35" Tire Diameter
35X12.5R22
35X14.5R22
35X15.5R22
375/45R22 = 35.3X14.8R22
36" Tire Diameter
325/55R22 = 36.1x12.8R22
335/55R22 = 36.
5X13.2R22
37" Tire Diameter
325/60R22 = 37.4x12.8R22
37X12.5R22
37X13.5R22
38" Tire Diameter
355/60R22 = 38.8x14R22
38X13.5R22
38X15.5R22
40" Tire Diameter
40X14.5R22
40X15.5R22
41" Tire Diameter
41X14.5R22
42" Tire Diameter
42.5X13.5R22
Tyre Size Calculator Chart for 23" Wheels
28" Tire Diameter
265/25R23 = 28.2X10.4R23
30" Tire Diameter
285/35R23 = 30.9x11.2R23
325/30R23 = 30.7X12.8R23
31" Tire Diameter
275/40R23 = 31.7X10.8R23
32" Tire Diameter
285/40R23 = 32x11.2R23
305/40R23 = 32.6x12R23
325/35R23 = 32X12.8R23
Tyre Size Calculator Chart for 24" Wheels
29" Tire Diameter
275/25R24 = 29.4x10.8R24
30" Tire Diameter
255/30R24 = 30x10R24
275/30R24 = 30.5x10.8R24
285/30R24 = 30.7x11.2R24
31" Tire Diameter
285/35R24 = 31.
9x11.2R24
295/30R24 = 31X11.6R24
32" Tire Diameter
295/35R24 = 32.1x11.6R24
305/35R24 = 32.4x12R24
315/35R24 = 32.7x12.4R24
405/25R24 = 32x15.9R24
33" Tire Diameter
285/40R24 = 33x11.2R24
295/40R24 = 33.3x11.6R24
34" Tire Diameter
385/35R24 = 34.6x15.2R24
35" Tire Diameter
325/45R24 = 35.5x12.8R24
35X12.5R24
35X13.5R24
375/40R24 = 35.8X14.8R24
36" Tire Diameter
315/50R24 = 36.4X12.4R24
37" Tire Diameter
37X13.5R24
37X14.5R24
38" Tire Diameter
38X13.5R24
38X14R24
38X15.5R24
40" Tire Diameter
40X13.5R24
40X14.5R24
40X15.5R24
42" Tire Diameter
42X15.5R24
Tyre Size Calculator Chart for 26" Wheels
31" Tire Diameter
275/25R26 = 31.4x10.8R26
295/25R26 = 31.8x11.6R26
33" Tire Diameter
295/30R26 = 33x11.6R26
305/30R26 = 33.
2x12R26
35" Tire Diameter
315/40R26 = 35.9x12.4R26
37" Tire Diameter
37X13.5R26
38" Tire Diameter
38X15.5R26
40" Tire Diameter
40X13.5R26
40X15.5R26
42" Tire Diameter
42X15.5R26
Tyre Size Calculator Chart for 28" Wheels
33" Tire Diameter
295/25R28 = 33.8x11.6R28
37" Tire Diameter
325/35R28 = 37x12.8R28
40" Tire Diameter
40X15.5R28
42" Tire Diameter
42X15.5R28
Tyre Size Calculator Chart for 30" Wheels
37" Tire Diameter
315/30R30 = 37.4x12.4R30
How to choose the size of a bicycle tire. What types of markings and interchangeability of bicycle tires.
How to choose the size of a bicycle tire. What types of markings and interchangeability of bicycle tires. https://www.sportek.in.ua
Nikolaev bicycle shop "Sportek"
Published: 01/27/2017
Edited: 06/01/2021
Sooner or later, almost every cyclist faces the question of replacing the rubber on the wheel or the chambers for them.
The easiest way, of course, is to look at the size of the tire currently installed on the bike (it is written on the side of it), and look for exactly the same. On some rims, their landing diameter and width are also written.
In life, everything is always a little more complicated and it often happens that the tire you like has a marking that is not entirely clear or does not match the marking on your rubber. Sometimes it is necessary to replace the old bicycle rubber, which has served for many years, with a more modern one.
What to do? You can’t put a tire on a bike over the Internet, but you don’t want to pay money just like that.
In this article, we will try to help you understand the markings on bicycle tires and find out which of them are interchangeable.
The following questions will be considered in the article:
- bicycle wheel sizes;
- types of bicycle tire markings;
- interchangeability of bicycle tires in terms of fit diameter and width.
- selection of tire width from rim width
Wheel dimensions or more precisely rim dimensions
The first thing you need to know when choosing a tire is the size of the wheels. They are usually measured in inches, but sometimes in mm. There are not very many of them and the most common are 16, 18, 20, 24, 26, 27.5, 28, 29.
At the same time:
- 16, 18, 20 - installed on children's bicycles;
- 20, 24 - for teenagers
- 26 - for mountain and downhill bikes
- 26 and above - for adult models.
Further, what else you need to know is seat size (diameter) of the rim or BSD (English Bead Seat Diameter). It is the most important and determines the interchangeability of tires. If this number matches at the rim, tire, or tube, then that tire or tube fits those rims. And if the width of the new rubber can be changed, then the landing size will not change much.
If the size (numbers in mm) is written on the wheel (rim), for example, as in the photos above, they accurately indicate the fit size of the rim and its width, which is the main data for selecting the inner tube and tire for the wheel.
Bicycle tire label
There are several types. The confusion in the designation of sizes began in the middle of the 20th century, and today Great Britain and France use their own designations for marking.
Previously, the sizing system was based on the outside diameter of the tires. It was measured in inches (24", 26", 28") or in millimeters (500, 650, 700, etc.).
Over time, this system lost its meaning, because different products with the same outer diameter wheels (together with the height of the tire) did not match the inner diameter (rim diameter) on which this tire was put on.There were also marketing moves of manufacturers, and the accuracy of translation and rounding of measurements in inches is lower than in millimeters.
0003
To overcome these confusions and bring all sizes to the same standard, the International Organization for Standardization (ISO - International Organization for Standardization) has developed a universal system for designating tire sizes - ISO 5775 . This system was previously known as " ETRTO ". It was proposed by the organization of the same name: ETRTO (European Tire and Rim Technical Organization or in Russian: "European technical organization for rims and tires").
Types of markings for bicycle tires:
- Marking according to ISO specifications (ETRTO). The most accurate, understandable and convenient. Describes in millimeters all the necessary dimensions. For example, 28-622, where 28 mm is its width and 622 mm is inner (landing) diameter .
- Fractional marking in inches, type 28x1 1/8. Where: 28 is the outer diameter in inches and 1 1/8 is its width in inches (one whole and one eighth of an inch).
- Marking in inches in decimal fraction. For example: 26x1.75. Similarly: 26 - is the outer diameter of in inches, and 1.75 is the width. What is the difference between simple and decimal fractions in these notations, and what problems does this bring, we will talk a little lower.
- Designation of dimensions in the form of several numbers in inches: 28 x 1 5/8 x 1 3/8. Where: 28 - is the outer diameter of in inches, 1 5/8 is the height of the bike tire in inches (one whole and five eighths of an inch), 1 3/8 is its width in inches (one whole and three eighths of an inch).
- French mark. In our country, it is less common, however, on wheels made in Europe or for Europe, it is often applied.
At first it was in the form of a number and a letter, for example, 700C - 700 the outer diameter of the tire is in mm. The letter determined the width from "A" - the narrowest to "D" - the widest.
Now the marking has acquired a more modern look.
For example: 700 x 35C. Here the outer diameter of the tire is 700 mm and its width is 35 mm. The letter at the end indicates the inner (landing) diameter. In this case, "C" is 622 mm.
- On the old Soviet bicycle tires, the marking was also in millimeters, but it looked like 533x37. Those. first inner diameter tire (rim size ) - 533 mm, and then its width - 37 mm. (instruction for Soviet bicycles: "SPORT", "Salyut")
The problem of decimal and fractional tire sizes in inches
Note a very important nuance and paradox in inch sizes. Tire sizes can be specified as a decimal fraction, such as 26x1.75, or as a simple fraction, such as 26x1 3/4.
Mathematically, these fractions are equal: 1.75 = 1 3/4.
But, in terms of fit size and tire width in millimeters, this is not always the case, and the most unpleasant thing is that tires with such dimensions can be not interchangeable with .
And this circumstance should always be taken into account when purchasing a new bike tire.
Table of interchangeability (compatibility) and ratio of tire sizes in different marking systems
In the table below, we have tried to collect the most common tire size designations in different systems and show their compatibility.
Perhaps not all dimensions encountered in life were taken into account, but if you have a tire with dimensions not listed in the table, try to estimate its dimensions based on similar nearest or similar dimensions.
Rim bore size
in mm according to ISO | Tire size
in plain and decimal inches | French tire size | Tire size
in mm according to ISO
(width - bore) | Explanations |
| 681 | | | 22-681 | Sports track bike B-64 "Record" KhVZ (1958) |
| 642 | 28 x 1 5/8 x 1 1/2 | 700-28A | 28-642 | Obsolete size |
| 28 x 1 3/8 | 700-35A | 37-642 |
| 635 | 28 x 1 1/2 x 1 1/8 | 700-28B | 32-635 | American, English, Danish, Chinese, Indian road models |
28 x 1 1/2,
28 x 1 1/2 x 1 5/8 | 700-38B,
700B Standard | 40-635 |
| 28 x 1 5/8 x 1 1/2 | | 44-635 |
| 630 | 27 x 7/8 | | 22-630 | Road bikes, including older models |
| 27 x 1 | | 25-630 |
| 27 x 1 1/8 | | 28-630 |
| 27 x 1 1/4 | | 32-630 |
| 27 x 1 3/8 | | 37-630 |
| 27 x all options | | |
| 622 | 29 x all variants | 700C | | This size was invented by marketers for tires with a bore diameter of 622 mm. They differ from 28 only in tire height. |
| 28 x decimal | 700C | | For 622 mm tires |
| 28 x 3/4 | 700-18C
700x18C | 18-622 |
| | 700-19C
700x19C | 19-622 |
| 28 x 3/4 | 700-20C
700x20C | 20-622 |
28 x 1
28 x 7/8 | 700-23C
700x23C | 23-622 |
| 28 x 1 | 700-25C
700x25C | 25-622 |
28 x 1 1/8,
28 x 1 5/8 x 1 1/8 | 700-28C
700x28C | 28-622 |
| 28 x 1.20 | 700-30C
700x30C | 30-622 |
28 x 1 3/4,
28 x 1.5 | 700x38C
700-40C | 40-622 | Road bikes: "Ukraine", "Minsk", "Sura", "Velta", "Aist" (111-321, 111-322) |
28 x 1 1/2,
28 x 1 5/8 x 1 3/8 | 700C
700x35C
700x38C | 35-622
37-622 | Road bikes: "Ukraine", "Minsk", "Sura", "Velta", "Aist" |
27 x 1 1/4,
28 x 1 5/8 x 1 1/4 | 700-32C
700x32C | 32-622 | Road and sports touring bikes, "Tourist", "Sport", "Sputnik" |
| 28 x 1 5/8 x 1 1/4 | | | Obsolete Canadian designation F13 |
28 x 1. 4 | 700-35C
700x35C | 35-622 | Road bikes |
| 28 x 1.5 | 700x38C
700-38C
700-40C
700x40C | 40-622 |
| 28 x 1 3/8 x 1 5/8 | | 37-622 |
| 28 x 1.6 | 700-42C
700x42C | 42-622 |
| 28 x 1.6 | 700-44C
700x44C | 44-622 |
| 28 x 1 5/8 x 1 3/4 | 700-45C
700x46C | 45-622 |
28 x 1.75,
28 x 1 5/8 x 1 3/4 | 700-47C
700x47C | 47-622 |
| 28 x 2.00 | 700-50C
700x50C | 50-622 |
| 600 | | | 22 (23, 24, 25, 27, 28, 30)-600 | Old Soviet sports and track bikes |
| 599 | 26 x 1.25,
26 x 1.375 | | 32-599 | Very old American light bicycles. |
| 26 x 1 7/8 | | 47-599 | ZiF (Penza) 190-535 "Samson" |
| 597 | 26 x 1 1/4 (EA1) (England) | | 32-597 | English old sports and club bikes. |
| 26 x 1 3/8 (S-6) | | 37-597 | Light bicycles of the American firm Schwinn. |
| 590 | 26 x 1 1/8 | | 28-590 | Soviet bicycles ZiF (Penza) "Diana", "Prima", "Turn", "Relay", "Sura", "Breeze", "Temp" American and English 3 and 10 speed. |
| 26 x 1 1/4 | | 32-590 |
| 26 x 1 3/8 (E.A.3) (England) | 650A | 35-590 |
| 26 x 1 3/8 | 650-35A
650x35A | 37-590 | |
| 26 x 1 5/8 | | 44-590 | |
| 587 | | 700D | | Old size on some GT models |
| 584 | 27. 5 x 1.50 | 650x38B | 40-584 | French road bikes, touring bikes with cargo, tandems, some Raleigh (USA), old Schwinn mountain bikes |
| 26 x 1 1/2 | 650B | 37-584 |
| 27.5 x 1.5 | 40-584 |
| 27.5 x 1.65 | 44-584 |
| 27.5 x 1.75 | 47-584 |
| 27.5 x 2 | 52-584 |
| 27.5 x 2.1 | 54-584 |
| 27.5 x 2.25 | 57-584 |
| 27.5 x 2.3 | 60-584 |
| 27.5 x 2.4 | 62-584 |
| 27.5 x 2.8 | 70-584 |
| 571 | 26 x 3/4 | 650x20C | 20-571 | Triathlon, time trial, small road bikes, some French Peugeot bikes. |
| 26 x 7/8 | 650x23C | 23-571 |
| 26 x 1 | 650C | 23-571 |
26 x 1. 75 | | 47-571 |
| 26x1 3/4 (S-7) | | | Road Schwinn |
| 559 | 26 x 1.0 | | 25-559 | Most mountain bikes. Classic landing diameter for 26 wheels. |
| 26 x 1.25 | | 32-559 |
| 26 x 1.35 | | 35-559 |
| 26 x 1.4 | | 37-559 |
| 26 x 1.5 | | 40-559 |
| 26 x 1.6 | | 44-559 |
26 x 1.75
26 x 1.75 x 2 | | 47-559 |
| 26 x 1.95 | | 50-559 |
| 26 x 2.00 | | 52-559 |
| 26 x 2.10 | | 54-559 |
| 26x2.15 | | 55-559 |
26 x 2. 25 | | 57-559 |
| 26 x 2.3 | | 60-559 |
| 26 x 2.4 | | 62-559 |
| 26 x 3.0 | | 75-559 |
| 26x3.7 | | 95-559 |
| 26 x 4.00 | | 100-559 |
| 26x4.5 | | 115-559 |
| 26x4.8 | | 120-559 |
| 547 | 24x1 1/4 | | | English children's and American firm Schwinn |
| 24x1 3/8 (S-5) | | | Schwinn American children's bicycles |
| 540 | 24 x 1 1/8 | 600A | 28-540 | Children's English and European bicycles, most wheelchairs |
| 24 x 1 1/4 | 32-540 |
24 x 1 3/8(E-5),
24 x 1 3/8 A | 37-540 |
| 533 | 24 x 1 1/2 | | 37-533 | "Salute", "Altair", "Ervi", "Eaglet", "Erelyukas", "Swallow" ("Kregzdute", "Kregzhdute" - Siauliai bicycle factory "Vairas" Lithuania).
This is the Soviet standard and tires with a diameter of 533 mm are available only with a width of 37 mm. Be careful when replacing as not all 24" tires will fit 533 wheels. |
| 531 | 24 x 1 5/8 x 1 1/2 | | 44-531 | |
| 520 | 24x1 | | 25-520 | Road wheels for children's bikes |
| 507 | 24 x 1.5 | | 40-507 | Children's mountain. "Salute", "Altair", "Ervi" |
| 24 x 1.75 | | 47-507 |
| 24 x 1.95 | | 50-507 |
| 24 x 2.0 | | 51-507 |
| 24 x 2.125 | | 54-507 |
| 24 x 2.25 | | 57-507 |
| 24 x 2.35 | | 60-507 |
24 x 2. 5 | | 62-507 |
| 24 x 2.6 | | 65-507 |
| 24 x 2.75 | | 70-507 |
| 24 x 3.0 | | 75-507 |
| 501 | 22 x 1.0 | | 25-501 | European bikes |
| 22 x 1 1/4 | | 32-501 |
| 22 x 1 3/8 | | 37-501 |
| 490 | | 550-28A | 28-490 | European Road Kids Bikes |
| 22 x 1 3/8 x 1 1/4 | 550-32A | 32-490 |
| 22 x 1 3/8 | 550-35A | 37-490 |
| 489 | 22 x 1.0 | | 25-489 | European bikes |
| 22 x 1 3/8 | | 37-489 |
| 22 x 1 3/8 x 1 1/4 | | 40-489 |
22 x 2. 00 | | 50-489 |
| 457 | 22 x 1.75 to 2.125 | | | Children's bicycles |
| 451 | 20 x 1 1/8 | | 28-451 | BMX for light riders, light children's bikes, some ligerades.
Wheels on some types of wheelchairs. |
| 20 x 1 1/4 | | 30-451 |
| 20 x 1 3/8 | | 37-451 |
| 445 | 20 x 1 1/4 | | 30-445 | "Schoolboy" (old Soviet models) |
| 440 | | 500-28A | 28-440 | European folding, children's bikes |
| | 500-35A | 37-440 |
| 20 x 1 1/2 | 500-38A | 40-440 |
| 438 | 20 x 1 3/8 | | 37-438 | European bikes |
| 20 x 1 3/8 1 1/2 | | 40-438 |
| 432 | 20 x 2 1/2 | | 40-432 | European bikes |
| 428 | 20 x 2. 00 | | 54-428 | European bikes |
| 419 | 20 x 1 3/4 | | | Schwinn American children's bicycles |
| 406 | 20 x 1.25 | | 32-406 | Most BMX bikes, kids and folding models. "Venta" (folding model 175-811). "Stork" (folding, model 113-322) "Tisa-2", "Cross", "KAMA", "DESNA", "Schoolnik", "Velta Kama", "Dubisa" (Siauliai bicycle factory), "Eureka" and other folding and old Soviet models. Folding "Mustang" |
| 20 x 1.35 | | 35-406 |
20 x 1 3/4
20 x 1.5 | | 40-406 |
20 x 1.75,
20 x 1.75 x 2 | | 47-406 |
| 20 x 1.95 | | 50-406 |
| 20 x 2.00 | | 54-406 |
20 x 2. 125 | | 57-406 |
| 20 x 2.35 | | 60-406 |
| 20 x 2.5 | | 62-406 |
| 20 x 2.6 | | 65-406 |
| 20 x 2.75 | | 70-406 |
| 20 x 3.0 | | 75-406 |
| 390 | 18 x 1 1/8 | 450-28A | 28-390 | Children's European bikes |
| 18 x 1 3/8 | 450-35A | 37-390 |
| | 450-55A | 55-390 |
| 387 | 18 x 1 1/2 | | 37-387 | Children's European bikes |
| 369 | 17 x 1 1/4 | | 32-369 | Bicycles Alex Moulton |
| 355 | 18 x 1 1/8 | | 28-355 | Children's bicycles |
18 x 1. 25 | | 32-355 |
| 18 x 1.35 | | 35-355 |
| 18 x 1.5 | | 40-355 | Birdy folding bikes. |
| 18 x 1.6 | | 42-355 | Children's bicycles |
| 18 x 1.75 | | 47-355 |
| 18 x 1.95 | | 50-355 |
| 18 x 2.0 | | 54-355 |
| 18 x 2.125 | | 57-355 |
| 349 | 16 x 1 1/8 | | 28-349 | Old Moulton, Brompton and other folding bicycles, ligerade front wheels, children's bicycles. |
16 x 1 1/4
16 x 1.25 | | 32-349 |
| 16 x 1.35 | | 35-349 |
| 16 x 1 3/8 | | 37-349 |
| 340 | | 400-30A | 28-340 | Children's European bikes |
| 16 x 1 3/8 x 1 1/4 | 400-32A | 32-340 |
| 16 x 1 3/8 | 400-35A | 37-340 |
| 16 x 1 5/8 | 400A | 44-340 |
| 335 | 16 x 1 3/8 | | | Children's Polish bicycles |
| 330 | 16 x 1 1/2 | 400-38B | 40-330 | Children's bicycles |
| 317 | 16 x 1 3/4 | | | Schwinn American children's bicycles |
| 305 | 16 x 1. 5 | | 40-305 | Children's bicycles, folding, touring and some ligerades. |
| 16 x 1.75 | | 47-305 |
| 16 x 1.95 | | 50-305 |
| 16 x 2.0 | | 54-305 |
| 16 x 2.125 | | 57-305 |
| 16 x 2.5 | | 62-305 |
| 298 | 14 x 1 1/4 | 350-32A | 32-298 | Carriages, children's bikes, balance bikes |
| 288 | 14 x 1 3/8 | 350A,
350-35A | 37-288 | Children's bicycles, balance bikes |
| 14 x 1 5/8 | 350-38A | 40-288 |
| 14 x 1 5/8 x 1 3/8 | 350-42A | 44-288 |
| 14 x 1.75 | | 47-288 |
| 279 | 14 x 1 1/2 | 350-38B | 40-279 | Children's bicycles, balance bikes |
| 254 | 14 x 1. 5 | | 40-254 | Children's bicycles, balance bikes |
| 14 x 1.75 | | 47-254 |
| 14 x 2 | | 54-254 |
| 239 | 12 1/2 x 1 3/8 x 1 1/4 | 300-32A
300x32A | 32-239 | Children's bicycles, balance bikes |
| 205 | 12 1/2 x 2 1/4 | | 56-205 | Children's bicycles "KVD", balance bikes, sometimes suitable for baby carriages ("Dutik" tires) |
| 203 | 12 x 1.75
12 1/2 x 1.75
12 1/2 x 1.9 | | 47-203 | Small children's bicycles, balance bikes, baby carriages |
| 12 x 1.95 | | 54-203 |
| 12 x 2.0 | | 50-203 |
12 x 2.125,
12 1/2 x 2 1/4 R | | 57-203 |
| 12 1/2 x 2 1/4 | | 62-203 |
| 176 | | | 55-176 | Tires for tricycles, scooters, balance bikes for small children, wheelbarrows and carts, prams |
| 152 | 10 x 2 | | 54-152 |
| 137 | 8 x 1 1/4 | | 32-137 |
In short, we can say that adult bikes have a seat diameter for:
- 28 and 29 wheels - 622 mm.
29 tires differ from 28 only in height. - 27.5 inches - 584 and 590 mm. For these wheels, you need to be careful when choosing rubber, since both landing diameters fit them and often the size “26 x …” is written on tires suitable for these wheels.
- 26" - 559 mm
Small but interesting nuances regarding tire width:
- Tire width written on it does not always coincide with its actual width. In most cases, it depends on the pressure in it and the methods of measuring the width, especially on studded tires.
- Moreover, it sometimes does not coincide with mathematics. For example, a width of 2.125 inches is 54 mm (2.125 * 25.4 = 53.98 mm), but manufacturers, especially Chinese ones, stubbornly write 57 mm on it, although this applies more to a width of 2.25 inches.
- That is why, relative to the width written on the tire, calmly, and not with accounting accuracy.
How to choose the right bicycle tire width
Tire width selection is more flexible than rim diameter.
Rim widths are measured and marked in millimeters as shown in the figure at the beginning of the article.
How to measure the width of the rim is described in a separate article here.
Dependence of tire width on rim width for different types of bicycles:
Rim width
in mm | Tire width
in mm and inches | Bicycle type |
| 13 | 18 - 25 mm (1") | road and cyclocross models |
| 15 | 23 - 32 mm (1" - 1.25") |
| 17 | 25-37 mm (1" - 1.5") | light cross-country and hybrid models |
| 18 | 28 - 44 mm (1.1" - 1.75") | heavy cross-country and hybrid models |
| 19 | 28 - 60 mm (1.1" - 2.35") | MTB (mountain bikes, mountain bikes) |
| 20 | 28 -47 mm (1. 1" - 2") | cycling and light extreme |
| 21 | 35 - 50 mm (1.4" - 2") |
| 23 | 40 - 50 mm (1.5" - 2.1") | extreme cycling |
| 25 or more | 44 - 57 mm (1.75" - 2.25") |
| 32 | 75 mm (3") and over |
This table is a guideline for an average bike. Use it not as a dogma, but as a guideline for selection.
Some manufacturers give their own tables for the tires they produce, according to which they need to be selected for their wheel.
If the tire is narrower than the rim:
- the chance of punctures is much higher
- rims can be damaged
If the tire is much wider than the rim:
- Poor handling at low speed.
- Tires wear out faster - especially the sidewall.
- Even with a slightly inflated tire, the handling of the bike is greatly impaired.
- The possibility of it breaking off the wheel rim during a sharp turn increases.
The tire width affects rolling and grip. The wider - the better the grip, cornering control, but the worse the roll.
It is considered optimal if the width of the tire is 1.5-2.1 times wider than the inner width of the rim. It is possible and 2.5 times, but this is already an amateur.
The tire-to-rim width ratio affects the tire's cornering behavior. Too wide tires mounted on a narrow rim can simply break. will have a pear-shaped profile.
Further, if the wheel is equipped with toothy rubber, then the side spikes on the tread will not be where they should be for sure grip in the turn.
With wide tires on a narrow rim, the side studs will be too high and will not hold properly in the turn.
On narrow tires with a wide rim, the spikes will be from below and with a good slope, the bike will ride on the sidewall, and she is bald.
Below is the famous table compiled by Georg Boeder of tire and rim width recommendations
fractional inches) here.
Articles about tires:
- Which tire to choose for a bike
- What do the numbers and inscriptions on bicycle tires mean
- Is it possible to put different tires on different wheels of a bicycle and how to choose them?
- What is the compound and stiffness of bicycle tires
- What is TPI (EPI) for bicycle tires
- Bicycle Tire Wear: Causes and Treatment
- How to protect a bicycle wheel from punctures
- Bicycle tire pressure
- How to increase the grip of bicycle wheels with the road in winter on snow
- Lump (hernia) on a bicycle wheel. Why does it appear and can it be “treated”.
Comments (131)
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What pressure should be in bicycle tires, how many atmospheres should a pressure gauge show
- Why do you need to know information about tire pressure
- What is tire pressure measured
- Marking on bicycle tires
- from the rubber surface and type tires
- depending on the weight of the cyclist
- depending on the air temperature
- depending on the type of bike
How to find the ideal pressure for your bike When buying a bike, many people do not even think about the fact that the convenience and comfort when riding it is achieved by correctly selected tire pressure.
The service life of the bicycle, the speed of riding, the degree of tire wear, safety, control of the two-wheeled friend depends on how the wheels are inflated.
Why you need to know tire pressure information
Many cyclists believe that inflating the tires is only necessary for a good bike ride. However, flat tires have a wider area of contact with the road, which means that grip will be better, but it will be very difficult to accelerate to a speed of 30-35 km / h on such tires.
When inflating your tires, you should always consider the type of terrain or surface you will be driving on. If the walk is supposed to be on an asphalt road, the tire pressure of the bicycle should be close to the maximum allowable value. Elastic wheels on a flat surface will provide a smooth rolling and high speed of movement.
For riding on rough terrain with unpaved paths, it is better to set the tire pressure to medium tolerable, so that you can ride long distances in comfort and convenience.
At high pressure, the grip of the wheel with the road will be minimal, respectively, all holes, pebbles, and bumps on the road will be sensitive. And with flat tires, the likelihood of damage to the wheel or puncture of the chamber increases.
In order to protect yourself on the road, as well as to keep the bike or its individual parts intact, you need to know exactly the lower and upper limits of permissible values, to what pressure the bicycle wheels can be pumped.
Information about tire pressure gives you an advantage when cycling:
- an over-inflated wheel is prone to breaks or punctures against the rim, especially at high speed;
- too little pressure can cause the tire to break through in the form of a "snake bite" when hitting even a small obstacle;
- reduced pressure softens bumps in the road, improves damping properties;
- pressure is normal at the lower limit, increases traction in off-road or rough terrain;
- the pressure is normal at the upper limit, in conditions of an asphalt track, it gives high speed, while saving the strength of the cyclist.
What is tire pressure measured in
Forget the old "old-fashioned" way to check the wheel by pressing with your fingers. No need to rely on tactile sensations, trying to feel with your hand the degree of rubber penetration on the tire. The air leaves the wheel gradually, through the pores in the rubber. Within 2-3 weeks, the pressure decreases by 0.1-0.2 atmospheres, but you cannot determine this with your fingers. The exact value at any time will help determine the pressure gauge that every cyclist should have in his arsenal. With its help, it is simple, with a minimum error, the level of pressure in bicycle tires is measured. A pump with a pressure gauge (floor or manual) will become an indispensable tool for cyclists.
There are three standard values in which bicycle tire pressure is measured.
- Bar (or atmosphere) / BAR
- Kilopascals / kPa
- Pound per square inch / PSI
kPa = 14.504 PSI
All these units are used to some extent - in different countries, by different manufacturers.
For residents of Russia and the post-Soviet space, the change in bars is more familiar, since this unit is clearly associated with the pressure of the 1st Earth's atmosphere at ocean level. In America and Western Europe, a popular unit is PSI, as they actively use pounds and inches in measurements. Pascals are the least used unit of measurement, but the most modern. Some bicycle manufacturers write data on the wheels about the allowable pressures in all three systems.
Marking on bicycle tires
Manufacturers indicate on the sidewall of the tire how many atmospheres to pump the bicycle wheels. Specifies the range within which the owner of the "iron horse" determines the desired values, depending on the specific factors of riding his bike. Values in the range are labeled from min to max, in two or all three dimensions. Numbers up to 10 are atmospheres (or BAR), tens-hundreds are PSI, and six-digit values \u200b\u200band with the prefix “k” / kilo are Pascals.
When inflating a wheel, you must strictly follow the manufacturer's recommendations and try not to go beyond both the minimum and maximum pressure levels indicated on the tire.
Moreover, it is better to leave a small margin of 0.2-0.5 BAR, both in one direction and in the other, so that the tire does not burst.
Dependence of pressure indicators
The pressure in the wheel is kept by the tire, not the tube, so there is no single standard for its value. There are several significant factors that determine how much you need to pump the wheels on a bicycle.
Tire type and rubber surface
The type of tire is determined by the surface of the track on which the cyclist will predominantly ride. Accordingly, the level of inflation of the bicycle wheel will be different. There is a direct dependence on the roughness of the tread and the width of the wheel - the more lugs and the wider the wheel, the lower the pressure should be. By experience, cyclists quickly determine how many atmospheres should be in the tires of their bicycle
Air temperature
Many cyclists do not realize that air temperature affects the pressure level in bicycle tires.
From the course of school physics, we recall that when heated, bodies expand. This means that in hot sunny weather, the pressure inside the air chamber will increase without additional pumping. Conversely, on cold winter days, a decrease in tire pressure is quickly felt due to low temperatures. This means that when going on a bike ride in the cold season, the pressure indicators need to be adjusted a little higher than usual, and in the summer heat the air should be bled a little. It is worth noting that when going on a bike ride, you should always take into account the weather conditions.
Weight of the rider
It is important to consider the load on the bike created by the weight of the rider, especially the fact that most of it is on the rear wheel. Therefore, the degree of its pumping should be slightly higher than the front, the optimal difference is 10%.
To calculate the optimal tire pressure for a bicycle, given the weight of its rider, you can use the table:
Rider weight (kg) Pressure (atmosphere) Pressure (PSI)
Bicycle type
The nature, riding style and type of bicycle also affect tire pressure.
Buyers who prefer an active pastime often opt for mountain bikes with 26-inch wheels, which ride well both on city streets and in rough terrain.
To understand to what pressure to inflate the wheels of a bicycle, it is necessary to take into account the features of both the bike itself and other, at first glance, weightless factors. For example, weaving threads on a tire, rim thickness, driving style. The likelihood of a tire coming off a wide rim is much less than a narrow rim, because a wider rim will hold the tire better than a thin one. Mountain biking already by its name suggests the presence of a difficult surface on the track, with possible obstacles and bumps. The driving style is more aggressive than on a smooth, calm trajectory, it obliges you to increase the tire pressure to a level slightly less than the upper limit.
The diameter of the wheel will also influence the selection of the optimal pressure value, since the larger it is, the higher the volume of air pumped will be.
