Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-22 | 285/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.1 (815.3) | 33.46 (850) | 1.37 (34.7) 4.3% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 100.84 (2561.34) | 105.13 (2670.35) | 4.29 (109.01) 4.3% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 6.73 (171) | 1.68 (42.75) 33.3% |
| Revolutions per mile (km) | 628.32 (390.42) | 602.67 (374.48) | -25.65 (-15.94) -4.1% |
285/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.85 mph (33.56 km/h) |
| 25 mph (40.23 km/h) | 26.06 mph (41.95 km/h) |
| 30 mph (48.28 km/h) | 31.28 mph (50.34 km/h) |
| 35 mph (56.33 km/h) | 36.49 mph (58.72 km/h) |
| 40 mph (64.37 km/h) | 41.7 mph (67.11 km/h) |
| 45 mph (72.42 km/h) | 46.92 mph (75.5 km/h) |
| 50 mph (80.47 km/h) | 52.13 mph (83.89 km/h) |
| 55 mph (88.51 km/h) | 57.34 mph (92.28 km/h) |
| 60 mph (96.56 km/h) | 62.55 mph (100.67 km/h) |
| 65 mph (104.61 km/h) | 67.77 mph (109.06 km/h) |
| 70 mph (112.65 km/h) | 72.98 mph (117.45 km/h) |
| 75 mph (120.7 km/h) | 78.19 mph (125.84 km/h) |
| 80 mph (128.75 km/h) | 83.4 mph (134.23 km/h) |
| 85 mph (136.79 km/h) | 88.62 mph (142.62 km/h) |
| 90 mph (144.84 km/h) | 93.83 mph (151.01 km/h) |
| 95 mph (152.89 km/h) | 99.04 mph (159.4 km/h) |
| 100 mph (160.93 km/h) | 104.26 mph (167.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1534 | 1782 | 1919 | 2004 | 2095 | 2160 | 2232 | 2317 | 2434 | 2552 | 2682 | 2787 | 2976 | 3185 | 3348 | 3452 | 3511 | 3727 | 4027 | 4679 |
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