Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.47 (773.9) | 32.71 (830.8) | 2.24 (56.9) 7.4% |
| Width inches (mm) | 9.65 (245) | 11.22 (285) | 1.57 (40) 16.3% |
| Circum. inches (mm) | 95.72 (2431.28) | 102.76 (2610.04) | 7.04 (178.76) 7.4% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.85 (199.5) | 0.62 (15.75) 8.6% |
| Revolutions per mile (km) | 661.93 (411.31) | 616.6 (383.14) | -45.33 (-28.17) -6.8% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.47 mph (34.55 km/h) |
| 25 mph (40.23 km/h) | 26.84 mph (43.19 km/h) |
| 30 mph (48.28 km/h) | 32.21 mph (51.83 km/h) |
| 35 mph (56.33 km/h) | 37.57 mph (60.47 km/h) |
| 40 mph (64.37 km/h) | 42.94 mph (69.11 km/h) |
| 45 mph (72.42 km/h) | 48.31 mph (77.75 km/h) |
| 50 mph (80.47 km/h) | 53.68 mph (86.38 km/h) |
| 55 mph (88.51 km/h) | 59.04 mph (95.02 km/h) |
| 60 mph (96.56 km/h) | 64.41 mph (103.66 km/h) |
| 65 mph (104.61 km/h) | 69.78 mph (112.3 km/h) |
| 70 mph (112.65 km/h) | 75.15 mph (120.94 km/h) |
| 75 mph (120.7 km/h) | 80.51 mph (129.58 km/h) |
| 80 mph (128.75 km/h) | 85.88 mph (138.21 km/h) |
| 85 mph (136.79 km/h) | 91.25 mph (146.85 km/h) |
| 90 mph (144.84 km/h) | 96.62 mph (155.49 km/h) |
| 95 mph (152.89 km/h) | 101.98 mph (164.13 km/h) |
| 100 mph (160.93 km/h) | 107.35 mph (172.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1569 | 1823 | 1963 | 2050 | 2143 | 2210 | 2284 | 2370 | 2491 | 2611 | 2744 | 2851 | 3045 | 3258 | 3425 | 3532 | 3592 | 3813 | 4120 | 4788 |
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