Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-19.5 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33 (838.3) | 32.71 (830.8) | -0.3 (-7.5) -0.9% |
| Width inches (mm) | 9.65 (245) | 11.22 (285) | 1.57 (40) 16.3% |
| Circum. inches (mm) | 103.68 (2633.6) | 102.76 (2610.04) | -0.93 (-23.56) -0.9% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.85 (199.5) | 1.1 (28) 16.3% |
| Revolutions per mile (km) | 611.08 (379.71) | 616.6 (383.14) | 5.52 (3.43) 0.9% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.82 mph (31.9 km/h) |
| 25 mph (40.23 km/h) | 24.78 mph (39.87 km/h) |
| 30 mph (48.28 km/h) | 29.73 mph (47.85 km/h) |
| 35 mph (56.33 km/h) | 34.69 mph (55.82 km/h) |
| 40 mph (64.37 km/h) | 39.64 mph (63.8 km/h) |
| 45 mph (72.42 km/h) | 44.6 mph (71.77 km/h) |
| 50 mph (80.47 km/h) | 49.55 mph (79.75 km/h) |
| 55 mph (88.51 km/h) | 54.51 mph (87.72 km/h) |
| 60 mph (96.56 km/h) | 59.46 mph (95.7 km/h) |
| 65 mph (104.61 km/h) | 64.42 mph (103.67 km/h) |
| 70 mph (112.65 km/h) | 69.37 mph (111.65 km/h) |
| 75 mph (120.7 km/h) | 74.33 mph (119.62 km/h) |
| 80 mph (128.75 km/h) | 79.28 mph (127.6 km/h) |
| 85 mph (136.79 km/h) | 84.24 mph (135.57 km/h) |
| 90 mph (144.84 km/h) | 89.19 mph (143.55 km/h) |
| 95 mph (152.89 km/h) | 94.15 mph (151.52 km/h) |
| 100 mph (160.93 km/h) | 99.11 mph (159.49 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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