The 305/70R16 equivalent to 32.8x12R16 in inches, as follow:
| Inches | Metric | |
| Diameter | 32.8" | 833 mm |
| Tread Width | 12" | 305 mm |
| Rim Diameter | 16" | 406 mm |
| Sidewall Height | 8.4" | 214 mm |
| Circumference | 103" | 2616 mm |
| Revolutions | 615" | 382 mm |
103"
615 Revs/Mile
The 305/70R16 has a width of 12 inches or 305 mm wide. This is the measurement of the tire at its thickest point, the distance between the inner sidewall’s widest point and the outer sidewall’s widest point. This physical width of the tire can change if the tire is mounted on a wheel slightly wider or narrower than the size indicated by the rim width.
The overall diameter of a 305/70R16 is 32.8 inches or 834 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.
The size rim of a 305/70R16 tire is 16 inches or 406 mm tall. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.
The sidewall height of a 305/70R16 is 8.7 inches or 214 mm tall. It’s measured from the wheel rim to the top of the tread, expressed as a percentage of tire width.
305/70R16 tire has a circumference of 103 inches or 2616 mm
The 305/70R16 performs 382 revolutions per kilometer or 615 revolutions per mile. Revolutions per mile indicate the number of times a tire revolves while it covers the distance of one mile/kilometer
You can replace the 305/70R16 tires that are within ±3% of the overall tire diameter. In this case, it’s between 31.8 and 33.8 inches (809mm to 859 mm). Check our tire size chart here or the tire size calculator tool here to find your size.
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4045505560657075
15
Add a Different Rear Tire Size
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In the table above you can see a detailed comparison of the difference in dimensions, parameters and performance between a 305/70 R16 tire and a 285/75 R16 tire. The results of the calculations are also presented in the form of visual models (infographics), on which the tire with a size of 305/70 R16 is on top, and with a size of 285/75 R16, respectively, at the bottom. The visualization was generated in two projections: lateral (left) and frontal (right). The online calculator compares tires according to the following characteristics: diameter, width, circumference, profile height, revolutions per km, ground clearance change. In addition, a potential deviation between the actual speed and the speed displayed on the speedometer is calculated, which can occur if the difference between tires 305/70 R16 and 285/75 R16 is significant.
If you want to compare other tyres, just select the required parameters in the drop-down fields and click on the green button.
| Side Comparison | Frontal comparison |
|---|---|
Tire and rim size charts
| Diameter | Size | Rim width | ||
|---|---|---|---|---|
Min. | Recommended mend. | Max. | ||
| 12 | 125 R12 | 3.5 | 3.0 | 4.0 |
| 135 R12 | 4.0 | 3.5 | 4.5 | |
| 145 R12 | 4.0 | 3.5 | 5.0 | |
| 155 R12 | 4.5 | 4.0 | 5.0 | |
| 145/70 R12 | 4.5 | 4.0 | 5.0 | |
| 155/70 R12 | 4.5 | 4.0 | 5.5 | |
| 13 | 145/80 R13 | 3.5 | 4 | 5 |
| 145/70 R13 | 3.5 | 4.5 | 5 | |
| 145/60 R13 | 4 | 4.5 | 5 | |
| 155/80 R13 | 4 | 4.5 | 5 | |
| 155/70 R13 | 4 | 4. 5 | 5 | |
| 165/80 R13 | 4 | 4.5 | 5 | |
| 165/70 R13 | 4 | 5 | 5.5 | |
| 165/65 R13 | 4.5 | 5 | 6 | |
| 175/70 R13 | 4.5 | 5 | 6 | |
| 175/65 R13 | 5 | 5 | 6 | |
| 185/70 R13 | 4.5 | 5.5 | 6 | |
| 14 | 145/65 R14 | 4 | 4.5 | 5 |
| 155/65 R14 | 4.5 | 4.5 | 5.5 | |
| 165/70 R14 | 4 | 5 | 5.5 | |
| 165/65 R14 | 4.5 | 5 | 6 | |
| 165/60 R14 | 4.5 | 5 | 6 | |
| 175/80 R14 | 4.5 | 5 | 6 | |
| 175/70 R14 | 4. 5 | 5 | 6 | |
| 175/65 R14 | 5 | 5 | 6 | |
| 175/60 R14 | 5 | 5 | 6 | |
| 185/70 R14 | 4.5 | 5.5 | 6 | |
| 185/65 R14 | 5 | 5.5 | 6.5 | |
| 185/60 R14 | 5 | 5.5 | 6.5 | |
| 185/55 R14 | 5 | 6 | 6.5 | |
| 195/70 R14 | 5 | 6 | 6.5 | |
| 195/65 R14 | 5.5 | 6 | 7 | |
| 195/60 R14 | 5.5 | 6 | 7 | |
| 15 | 145/65 R15 | 4 | 4.5 | 5 |
| 155/70 R15 | 4 | 4.5 | 5 | |
| 155/65 R15 | 4.5 | 4.5 | 5. 5 | |
| 165/65 R15 | 4.5 | 5 | 6 | |
| 175/65 R15 | 5 | 5 | 6 | |
| 175/60 R15 | 5 | 5 | 6 | |
| 175/55 R15 | 5 | 5.5 | 6 | |
| 185/65 R15 | 5 | 5.5 | 6.5 | |
| 185/60 R15 | 5 | 5.5 | 6.5 | |
| 185/55 R15 | 5 | 6 | 6.5 | |
| 195/70 R15 | 5 | 6 | 6.5 | |
| 195/65 R15 | 5.5 | 6 | 7 | |
| 195/60 R15 | 5.5 | 6 | 7 | |
| 195/55 R15 | 5.5 | 6 | 7 | |
| 195/50 R15 | 5.5 | 6 | 7 | |
| 195/45 R15 | 6 | 6. 5 | 7.5 | |
| 205/70 R15 | 5 | 6 | 7 | |
| 205/65 R15 | 5.5 | 6 | 7.5 | |
| 205/60 R15 | 5.5 | 6 | 7.5 | |
| 205/55 R15 | 5.5 | 6.5 | 7.5 | |
| 205/50 R15 | 5.5 | 6.5 | 7.5 | |
| 215/70 R15 | 5.5 | 6.5 | 7 | |
| 215/65 R15 | 6 | 6.5 | 7.5 | |
| 225/60 R15 | 6 | 6.5 | 8 | |
| 225/55 R15 | 6 | 7 | 8 | |
| 225/50 R15 | 6 | 7 | 8 | |
| 16 | 195/60 R16 | 5.5 | 6 | 7 |
| 195/55 R16 | 5.5 | 6 | 7 | |
| 195/50 R16 | 5. 5 | 6 | 7 | |
| 195/45 R16 | 6 | 6.5 | 7.5 | |
| 205/60 R16 | 5.5 | 6 | 7.5 | |
| 205/55 R16 | 5.5 | 6.5 | 7.5 | |
| 205/50 R16 | 5.5 | 6.5 | 7.5 | |
| 205/45 R16 | 6.5 | 7 | 7.5 | |
| 215/65 R16 | 6 | 6.5 | 7.5 | |
| 215/60 R16 | 6 | 6.5 | 7.5 | |
| 215/55 R16 | 6 | 7 | 7.5 | |
| 215/40 R16 | 7 | 7.5 | 8.5 | |
| 225/60 R16 | 6 | 6.5 | 8 | |
| 225/55 R16 | 6 | 7 | 8 | |
| 225/50 R16 | 6 | 7 | 8 | |
| 235/60 R16 | 6. 5 | 7 | 8.5 | |
| 245/55 R16 | 7.5 | 8 | 9 | |
| 17 | 205/55 R17 | 5.5 | 6.5 | 7.5 |
| 205/50 R17 | 5.5 | 6.5 | 7.5 | |
| 205/45 R17 | 6.5 | 7 | 7.5 | |
| 205/40 R17 | 7 | 7.5 | 8 | |
| 215/60 R17 | 6 | 6.5 | 7.5 | |
| 215/55 R17 | 6 | 7 | 7.5 | |
| 215/50 R17 | 6 | 7 | 7.5 | |
| 215/45 R17 | 7 | 7 | 8 | |
| 215/40 R17 | 7 | 7.5 | 8.5 | |
| 225/60 R17 | 6 | 6.5 | 8 | |
| 225/55 R17 | 6 | 7 | 8 | |
| 225/50 R17 | 6 | 7 | 8 | |
| 225/45 R17 | 7 | 7. 5 | 8.5 | |
| 225/35 R17 | 7.5 | 8 | 9 | |
| 235/65 R17 | 6.5 | 7 | 8.5 | |
| 235/55 R17 | 6.5 | 7.5 | 8.5 | |
| 235/50 R17 | 6.5 | 7.5 | 8.5 | |
| 235/45 R17 | 7.5 | 8 | 9 | |
| 235/40 R17 | 8 | 8.5 | 9.5 | |
| 245/55 R17 | 7 | 7.5 | 8.5 | |
| 245/45 R17 | 7.5 | 8 | 9 | |
| 245/40 R17 | 8 | 8.5 | 9.5 | |
| 255/55 R17 | 7 | 8 | 9 | |
| 255/45 R17 | 8 | 8.5 | 9.5 | |
| 255/40 R17 | 8.5 | 9 | 10 | |
| 265/40 R17 | 9 | 9. 5 | 10.5 | |
| 275/40 R17 | 9 | 9.5 | 11 | |
| 285/40 R17 | 9.5 | 10 | 11 | |
| 335/35 R17 | 11 | 12 | 13 | |
| 18 | 205/40 R18 | 7 | 7.5 | 8 |
| 215/45 R18 | 7 | 7 | 8 | |
| 225/60 R18 | 6 | 6.5 | 8 | |
| 225/45 R18 | 7 | 7.5 | 8.5 | |
| 225/40 R18 | 7.5 | 8 | 9 | |
| 225/35 R18 | 7.5 | 8 | 9 | |
| 235/65 R18 | 6.5 | 7 | 8.5 | |
| 235/50 R18 | 6.5 | 7.5 | 8.5 | |
| 235/45 R18 | 7.5 | 8 | 9 | |
| 235/40 R18 | 8 | 8. 5 | 9.5 | |
| 245/50 R18 | 7 | 7.5 | 8.5 | |
| 245/45 R18 | 7.5 | 8 | 9 | |
| 245/40 R18 | 8 | 8.5 | 9.5 | |
| 245/35 R18 | 8 | 8.5 | 9.5 | |
| 255/45 R18 | 8 | 8.5 | 9.5 | |
| 255/40 R18 | 8.5 | 9 | 10 | |
| 255/35 R18 | 8.5 | 9 | 10 | |
| 265/40 R18 | 9 | 9.5 | 10.5 | |
| 265/35 R18 | 9 | 9.5 | 10.5 | |
| 275/45 R18 | 8.5 | 9 | 10.5 | |
| 275/40 R18 | 9 | 9.5 | 11 | |
| 275/35 R18 | 9 | 9.5 | 11 | |
| 285/40 R18 | 9. 5 | 10 | 11 | |
| 285/35 R18 | 9.5 | 10 | 11 | |
| 285/30 R18 | 10 | 10 | 10.5 | |
| 295/35 R18 | 10 | 10.5 | 11.5 | |
| 295/30 R18 | 10.5 | 10.5 | 11 | |
| 315/30 R18 | 11 | 11 | 12.5 | |
| 335/30 R18 | 12 | 12 | 12.5 | |
| 345/35 R18 | 11.5 | 12 | 13.5 | |
| 345/30 R18 | 12 | 12 | 12.5 | |
| 19 | 225/40 R19 | 7.5 | 8 | 9 |
| 225/35 R19 | 7.5 | 8 | 9 | |
| 235/35 R19 | 8 | 8.5 | 9.5 | |
| 245/45 R19 | 7.5 | 8 | 9 | |
| 245/40 R19 | 8 | 8. 5 | 9.5 | |
| 245/35 R19 | 8 | 8.5 | 9.5 | |
| 255/40 R19 | 8.5 | 9 | 10 | |
| 255/35 R19 | 8.5 | 9 | 10 | |
| 255/30 R19 | 8.5 | 9 | 9.5 | |
| 265/35 R19 | 9 | 9.5 | 10.5 | |
| 265/30 R19 | 9 | 9.5 | 10 | |
| 275/50 R19 | 7.5 | 8.5 | 9.5 | |
| 275/40 R19 | 9 | 9.5 | 11 | |
| 275/35 R19 | 9 | 9.5 | 11 | |
| 275/30 R19 | 9 | 9.5 | 10 | |
| 285/35 R19 | 9.5 | 10 | 11 | |
| 295/30 R19 | 10.5 | 10.5 | 11 | |
| 305/30 R19 | 11 | 11 | 12 | |
| 315/25 R19 | 11 | 11. 5 | 12 | |
| 325/30 R19 | 11 | 11.5 | 12 | |
| 345/30 R19 | 12 | 12 | 12.5 | |
| 20 | 235/30 R20 | 8.5 | ||
| 245/40 R20 | 8 | 8.5 | 9.5 | |
| 245/35 R20 | 8 | 8.5 | 9.5 | |
| 245/30 R20 | 8 | 8.5 | 9 | |
| 255/35 R20 | 8.5 | 9 | 10 | |
| 255/30 R20 | 8.5 | 9 | 9.5 | |
| 275/45 R20 | 8.5 | 9 | 10.5 | |
| 275/35 R20 | 9 | 9.5 | 11 | |
| 285/30 R20 | 10 | 10 | 10.5 | |
| 285/25 R20 | 10.5 | |||
| 295/25 R20 | 10. 5 | 10.5 | 11 | |
| 305/35 R20 | 10 | 11 | 12 | |
| 305/25 R20 | 10.5 | 11 | 11.5 | |
| 325/25 R20 | 11.5 | 12 | 12.5 | |
| 335/30 R20 | 12 | 12 | 12.5 | |
| 21 | 245/35 R21 | 8 | 8.5 | 9.5 |
| 255/30 R21 | 9 | 9 | 9.5 | |
| 285/30 R21 | 10 | 10 | 10.5 | |
| 295/25 R21 | 10 | 10.5 | 11 | |
| 22 | 255/30 R22 | 8.5 | 9 | 9.5 |
| 295/25 R22 | 10.5 | 10.5 | 11 | |
| Diameter | Size | Rim width | ||
|---|---|---|---|---|
| Min. | Recommended mend. | Max. | ||
| 15 | 185/65 R15 | 5 | 5.5 | 6.5 |
| 195/80 R15 | 5 | 5.5 | 6.5 | |
| 195/70 R15 | 5 | 6 | 6.5 | |
| 205/70 R15 | 5 | 6 | 7 | |
| 215/80 R15 | 5.5 | 6 | 7 | |
| 225/75 R15 | 6 | 6 | 7.5 | |
| 235/75 R15 | 6 | 6.5 | 8 | |
| 255/75 R15 | 6.5 | 7 | 8.5 | |
| 265/70 R15 | 7 | 8 | 9 | |
| 16 | 205/80 R16 | 5 | 5.5 | 7 |
| 215/70 R16 | 5. | 6.5 | 7 | |
| 215/65 R16 | 6 | 6.5 | 7.5 | |
| 215/60 R16 | 6 | 6.5 | 7.5 | |
| 225/75 R16 | 6 | 6 | 7.5 | |
| 225/70 R16 | 6 | 6.5 | 7.5 | |
| 235/85 R16 | 6 | 6.5 | 7.5 | |
| 235/70 R16 | 6 | 7 | 8 | |
| 235/60 R16 | 6.5 | 7 | 8.5 | |
| 245/70 R16 | 6.5 | 7 | 8 | |
| 255/70 R16 | 6.5 | 7.5 | 8.5 | |
| 255/65 R16 | 7 | 7.5 | 9 | |
| 265/70 R16 | 7 | 8 | 9 | |
| 275/70 R16 | 7 | 8 | 9 | |
| 17 | 225/65 R17 | 6 | 6. | 8 |
| 225/55 R17 | 6 | 7 | 8 | |
| 235/65 R17 | 6.5 | 7 | 8.5 | |
| 235/55 R17 | 6.5 | 7.5 | 8.5 | |
| 245/65 R17 | 7 | 7 | 8.5 | |
| 255/60 R17 | 7 | 7.5 | 9 | |
| 255/50 R17 | 7 | 8 | 9 | |
| 265/65 R17 | 7.5 | 8 | 9.5 | |
| 265/70 R17 | 7 | 8 | 9 | |
| 275/65 R17 | 7.5 | 8 | 9.5 | |
| 275/55 R17 | 7.5 | 8.5 | 9.5 | |
| 18 | 225/55 R18 | 6 | 7 | 8 |
| 235/60 R18 | 6.5 | 7 | 8.5 | |
| 235/50 R18 | 6. | 7.5 | 8.5 | |
| 255/60 R18 | 7 | 7.5 | 9 | |
| 255/55 R18 | 7 | 8 | 9 | |
| 255/45 R18 | 8 | 8.5 | 9.5 | |
| 265/60 R18 | 7.5 | 8 | 9.5 | |
| 285/50 R18 | 8 | 9 | 10 | |
| 19 | 255/55 R19 | 7 | 8 | 9 |
| 255/50 R19 | 7 | 8 | 9 | |
| 275/45 R19 | 8.5 | 9 | 10.5 | |
| 285/45 R19 | 9 | 9.5 | 10.5 | |
| 20 | 255/50 R20 | 7 | 8 | 9 |
| 275/50 R20 | 7.5 | 8.5 | 9.5 | |
| 275/40 R20 | 9 | 9. | 11 | |
| 295/40 R20 | 10 | 10.5 | 11.5 | |
| 315/35 R20 | 10.5 | 11 | 12.5 | |
| 21 | 295/35 R21 | 10 | 10.5 | 11.5 |
| 22 | 285/35 R22 | 9.5 | 10 | 11 |
| 295/30 R22 | 10 | 10.5 | 11 | |
| 23 | 315/25 R23 | 11 | 11.5 | 12 |
| Diameter | Size | Rim width | ||
|---|---|---|---|---|
| Min. | Recommended mend. | Max. | ||
| 13 | 155/80 R13 | 4 | 4. | 5 |
| 165/70 R13 | 4.5 | 5 | 5 | |
| 14 | 165/70 R14 | 4.5 | 5 | 5 |
| 165/75 R14 | 4 | 4.5 | 5 | |
| 175/65 R14 | 5 | 5 | 5.5 | |
| 175/75 R14 | 4.5 | 5 | 5.5 | |
| 185/75 R14 | 4.5 | 5 | 6 | |
| 185/80 R14 | 4.5 | 5 | 6 | |
| 195/75 R14 | 5 | 5.5 | 6 | |
| 195/80 R14 | 5 | 5.5 | 6 | |
| 205/75 R14 | 5 | 5.5 | 6.5 | |
| 15 | 185/80 R15 | 4.5 | 5 | 6 |
| 195/70 R15 | 5.5 | 6 | 6 | |
| 205/65 R15 | 5. | 6 | 6.5 | |
| 205/70 R15 | 5.5 | 6 | 6.5 | |
| 215/65 R15 | 6 | 6.5 | 7 | |
| 215/70 R15 | 6 | 6.5 | 7 | |
| 225/70 R15 | 6 | 6.5 | 7 | |
| 16 | 6.5/100 R16 | 4.5 | 4.5 | 6 |
| 175/75 R16 | 4.5 | 5 | 5.5 | |
| 175/80 R16 | 4.5 | 5 | 5.5 | |
| 185/75 R16 | 4.5 | 5 | 6 | |
| 195/60 R16 | 5.5 | 6 | 6.5 | |
| 195/65 R16 | 5.5 | 6 | 6 | |
| 195/75 R16 | 5 | 5.5 | 6 | |
| 205/65 R16 | 5.5 | 6 | 6. | |
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