Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/75-17 | 315/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 34.36 (872.8) | 7.62 (193.5) 28.5% |
| Width inches (mm) | 6.5 (165) | 12.4 (315) | 5.91 (150) 90.9% |
| Circum. inches (mm) | 84.02 (2134.08) | 107.95 (2741.98) | 23.93 (607.9) 28.5% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 8.68 (220.5) | 3.81 (96.75) 78.2% |
| Revolutions per mile (km) | 754.11 (468.58) | 586.93 (364.7) | -167.19 (-103.89) -22.2% |
315/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.7 mph (41.36 km/h) |
| 25 mph (40.23 km/h) | 32.12 mph (51.69 km/h) |
| 30 mph (48.28 km/h) | 38.55 mph (62.03 km/h) |
| 35 mph (56.33 km/h) | 44.97 mph (72.37 km/h) |
| 40 mph (64.37 km/h) | 51.39 mph (82.71 km/h) |
| 45 mph (72.42 km/h) | 57.82 mph (93.05 km/h) |
| 50 mph (80.47 km/h) | 64.24 mph (103.39 km/h) |
| 55 mph (88.51 km/h) | 70.67 mph (113.73 km/h) |
| 60 mph (96.56 km/h) | 77.09 mph (124.07 km/h) |
| 65 mph (104.61 km/h) | 83.52 mph (134.41 km/h) |
| 70 mph (112.65 km/h) | 89.94 mph (144.74 km/h) |
| 75 mph (120.7 km/h) | 96.36 mph (155.08 km/h) |
| 80 mph (128.75 km/h) | 102.79 mph (165.42 km/h) |
| 85 mph (136.79 km/h) | 109.21 mph (175.76 km/h) |
| 90 mph (144.84 km/h) | 115.64 mph (186.1 km/h) |
| 95 mph (152.89 km/h) | 122.06 mph (196.44 km/h) |
| 100 mph (160.93 km/h) | 128.49 mph (206.78 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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