Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-19 | 285/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.04 (763.1) | 31.46 (799.2) | 1.42 (36.1) 4.7% |
| Width inches (mm) | 10.04 (255) | 11.22 (285) | 1.18 (30) 11.8% |
| Circum. inches (mm) | 94.38 (2397.35) | 98.85 (2510.76) | 4.47 (113.41) 4.7% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 6.73 (171) | 1.21 (30.75) 21.9% |
| Revolutions per mile (km) | 671.3 (417.13) | 640.98 (398.28) | -30.32 (-18.84) -4.5% |
285/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.71 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.14 km/h) |
| 30 mph (48.28 km/h) | 31.42 mph (50.56 km/h) |
| 35 mph (56.33 km/h) | 36.66 mph (58.99 km/h) |
| 40 mph (64.37 km/h) | 41.89 mph (67.42 km/h) |
| 45 mph (72.42 km/h) | 47.13 mph (75.85 km/h) |
| 50 mph (80.47 km/h) | 52.37 mph (84.27 km/h) |
| 55 mph (88.51 km/h) | 57.6 mph (92.7 km/h) |
| 60 mph (96.56 km/h) | 62.84 mph (101.13 km/h) |
| 65 mph (104.61 km/h) | 68.07 mph (109.56 km/h) |
| 70 mph (112.65 km/h) | 73.31 mph (117.98 km/h) |
| 75 mph (120.7 km/h) | 78.55 mph (126.41 km/h) |
| 80 mph (128.75 km/h) | 83.78 mph (134.84 km/h) |
| 85 mph (136.79 km/h) | 89.02 mph (143.27 km/h) |
| 90 mph (144.84 km/h) | 94.26 mph (151.69 km/h) |
| 95 mph (152.89 km/h) | 99.49 mph (160.12 km/h) |
| 100 mph (160.93 km/h) | 104.73 mph (168.55 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2041 | 2131 | 2228 | 2298 | 2374 | 2464 | 2589 | 2714 | 2853 | 2964 | 3165 | 3387 | 3561 | 3672 | 3734 | 3963 | 4283 | 4977 |
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