Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 285/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 31.46 (799.2) | 1.37 (34.8) 4.6% |
| Width inches (mm) | 10.08 (256) | 11.22 (285) | 1.14 (29) 11.3% |
| Circum. inches (mm) | 94.54 (2401.43) | 98.85 (2510.76) | 4.3 (109.33) 4.6% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 6.73 (171) | 0.69 (17.4) 11.3% |
| Revolutions per mile (km) | 670.16 (416.42) | 640.98 (398.28) | -29.18 (-18.13) -4.4% |
285/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.91 mph (33.65 km/h) |
| 25 mph (40.23 km/h) | 26.14 mph (42.07 km/h) |
| 30 mph (48.28 km/h) | 31.37 mph (50.48 km/h) |
| 35 mph (56.33 km/h) | 36.59 mph (58.89 km/h) |
| 40 mph (64.37 km/h) | 41.82 mph (67.3 km/h) |
| 45 mph (72.42 km/h) | 47.05 mph (75.72 km/h) |
| 50 mph (80.47 km/h) | 52.28 mph (84.13 km/h) |
| 55 mph (88.51 km/h) | 57.5 mph (92.54 km/h) |
| 60 mph (96.56 km/h) | 62.73 mph (100.96 km/h) |
| 65 mph (104.61 km/h) | 67.96 mph (109.37 km/h) |
| 70 mph (112.65 km/h) | 73.19 mph (117.78 km/h) |
| 75 mph (120.7 km/h) | 78.41 mph (126.2 km/h) |
| 80 mph (128.75 km/h) | 83.64 mph (134.61 km/h) |
| 85 mph (136.79 km/h) | 88.87 mph (143.02 km/h) |
| 90 mph (144.84 km/h) | 94.1 mph (151.44 km/h) |
| 95 mph (152.89 km/h) | 99.32 mph (159.85 km/h) |
| 100 mph (160.93 km/h) | 104.55 mph (168.26 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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