Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 32.71 (830.8) | 7.72 (196) 30.9% |
| Width inches (mm) | 5.71 (145) | 11.22 (285) | 5.51 (140) 96.6% |
| Circum. inches (mm) | 78.52 (1994.28) | 102.76 (2610.04) | 24.24 (615.75) 30.9% |
| Sidewall Height inches (mm) | 4 (101.5) | 7.85 (199.5) | 3.86 (98) 96.6% |
| Revolutions per mile (km) | 806.98 (501.43) | 616.6 (383.14) | -190.38 (-118.3) -23.6% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.18 mph (42.12 km/h) |
| 25 mph (40.23 km/h) | 32.72 mph (52.66 km/h) |
| 30 mph (48.28 km/h) | 39.26 mph (63.19 km/h) |
| 35 mph (56.33 km/h) | 45.81 mph (73.72 km/h) |
| 40 mph (64.37 km/h) | 52.35 mph (84.25 km/h) |
| 45 mph (72.42 km/h) | 58.89 mph (94.78 km/h) |
| 50 mph (80.47 km/h) | 65.44 mph (105.31 km/h) |
| 55 mph (88.51 km/h) | 71.98 mph (115.84 km/h) |
| 60 mph (96.56 km/h) | 78.53 mph (126.37 km/h) |
| 65 mph (104.61 km/h) | 85.07 mph (136.91 km/h) |
| 70 mph (112.65 km/h) | 91.61 mph (147.44 km/h) |
| 75 mph (120.7 km/h) | 98.16 mph (157.97 km/h) |
| 80 mph (128.75 km/h) | 104.7 mph (168.5 km/h) |
| 85 mph (136.79 km/h) | 111.24 mph (179.03 km/h) |
| 90 mph (144.84 km/h) | 117.79 mph (189.56 km/h) |
| 95 mph (152.89 km/h) | 124.33 mph (200.09 km/h) |
| 100 mph (160.93 km/h) | 130.88 mph (210.62 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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