Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 315/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 36.84 (935.8) | 7.15 (181.5) 24.1% |
| Width inches (mm) | 8.46 (215) | 12.4 (315) | 3.94 (100) 46.5% |
| Circum. inches (mm) | 93.3 (2369.7) | 115.74 (2939.9) | 22.45 (570.2) 24.1% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 9.92 (252) | 3.57 (90.75) 56.3% |
| Revolutions per mile (km) | 679.13 (421.99) | 547.41 (340.15) | -131.72 (-81.85) -19.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.81 mph (39.93 km/h) |
| 25 mph (40.23 km/h) | 31.02 mph (49.91 km/h) |
| 30 mph (48.28 km/h) | 37.22 mph (59.9 km/h) |
| 35 mph (56.33 km/h) | 43.42 mph (69.88 km/h) |
| 40 mph (64.37 km/h) | 49.62 mph (79.86 km/h) |
| 45 mph (72.42 km/h) | 55.83 mph (89.85 km/h) |
| 50 mph (80.47 km/h) | 62.03 mph (99.83 km/h) |
| 55 mph (88.51 km/h) | 68.23 mph (109.81 km/h) |
| 60 mph (96.56 km/h) | 74.44 mph (119.8 km/h) |
| 65 mph (104.61 km/h) | 80.64 mph (129.78 km/h) |
| 70 mph (112.65 km/h) | 86.84 mph (139.76 km/h) |
| 75 mph (120.7 km/h) | 93.05 mph (149.74 km/h) |
| 80 mph (128.75 km/h) | 99.25 mph (159.73 km/h) |
| 85 mph (136.79 km/h) | 105.45 mph (169.71 km/h) |
| 90 mph (144.84 km/h) | 111.66 mph (179.69 km/h) |
| 95 mph (152.89 km/h) | 117.86 mph (189.68 km/h) |
| 100 mph (160.93 km/h) | 124.06 mph (199.66 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1393 | 1618 | 1743 | 1820 | 1903 | 1962 | 2027 | 2104 | 2211 | 2318 | 2436 | 2531 | 2703 | 2893 | 3041 | 3136 | 3189 | 3385 | 3658 | 4250 |
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