Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/60-17 | 315/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.46 (773.8) | 34.36 (872.8) | 3.9 (99) 12.8% |
| Width inches (mm) | 11.22 (285) | 12.4 (315) | 1.18 (30) 10.5% |
| Circum. inches (mm) | 95.71 (2430.96) | 107.95 (2741.98) | 12.24 (311.02) 12.8% |
| Sidewall Height inches (mm) | 6.73 (171) | 8.68 (220.5) | 1.95 (49.5) 28.9% |
| Revolutions per mile (km) | 662.02 (411.36) | 586.93 (364.7) | -75.09 (-46.66) -11.3% |
315/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.56 mph (36.3 km/h) |
| 25 mph (40.23 km/h) | 28.2 mph (45.38 km/h) |
| 30 mph (48.28 km/h) | 33.84 mph (54.46 km/h) |
| 35 mph (56.33 km/h) | 39.48 mph (63.53 km/h) |
| 40 mph (64.37 km/h) | 45.12 mph (72.61 km/h) |
| 45 mph (72.42 km/h) | 50.76 mph (81.69 km/h) |
| 50 mph (80.47 km/h) | 56.4 mph (90.76 km/h) |
| 55 mph (88.51 km/h) | 62.04 mph (99.84 km/h) |
| 60 mph (96.56 km/h) | 67.68 mph (108.91 km/h) |
| 65 mph (104.61 km/h) | 73.32 mph (117.99 km/h) |
| 70 mph (112.65 km/h) | 78.96 mph (127.07 km/h) |
| 75 mph (120.7 km/h) | 84.6 mph (136.14 km/h) |
| 80 mph (128.75 km/h) | 90.24 mph (145.22 km/h) |
| 85 mph (136.79 km/h) | 95.87 mph (154.3 km/h) |
| 90 mph (144.84 km/h) | 101.51 mph (163.37 km/h) |
| 95 mph (152.89 km/h) | 107.15 mph (172.45 km/h) |
| 100 mph (160.93 km/h) | 112.79 mph (181.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1494 | 1735 | 1869 | 1951 | 2040 | 2104 | 2174 | 2256 | 2371 | 2485 | 2612 | 2714 | 2898 | 3102 | 3261 | 3362 | 3419 | 3629 | 3922 | 4557 |
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