Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-16 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.5 (749.4) | 32.71 (830.8) | 3.2 (81.4) 10.9% |
| Width inches (mm) | 9.65 (245) | 11.22 (285) | 1.57 (40) 16.3% |
| Circum. inches (mm) | 92.69 (2354.31) | 102.76 (2610.04) | 10.07 (255.73) 10.9% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.85 (199.5) | 1.1 (28) 16.3% |
| Revolutions per mile (km) | 683.57 (424.75) | 616.6 (383.14) | -66.98 (-41.62) -9.8% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.17 mph (35.68 km/h) |
| 25 mph (40.23 km/h) | 27.72 mph (44.6 km/h) |
| 30 mph (48.28 km/h) | 33.26 mph (53.52 km/h) |
| 35 mph (56.33 km/h) | 38.8 mph (62.45 km/h) |
| 40 mph (64.37 km/h) | 44.34 mph (71.37 km/h) |
| 45 mph (72.42 km/h) | 49.89 mph (80.29 km/h) |
| 50 mph (80.47 km/h) | 55.43 mph (89.21 km/h) |
| 55 mph (88.51 km/h) | 60.97 mph (98.13 km/h) |
| 60 mph (96.56 km/h) | 66.52 mph (107.05 km/h) |
| 65 mph (104.61 km/h) | 72.06 mph (115.97 km/h) |
| 70 mph (112.65 km/h) | 77.6 mph (124.89 km/h) |
| 75 mph (120.7 km/h) | 83.15 mph (133.81 km/h) |
| 80 mph (128.75 km/h) | 88.69 mph (142.73 km/h) |
| 85 mph (136.79 km/h) | 94.23 mph (151.65 km/h) |
| 90 mph (144.84 km/h) | 99.78 mph (160.57 km/h) |
| 95 mph (152.89 km/h) | 105.32 mph (169.49 km/h) |
| 100 mph (160.93 km/h) | 110.86 mph (178.42 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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