Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-21 | 285/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.1 (789.9) | 32.1 (815.3) | 1 (25.4) 3.2% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 97.7 (2481.54) | 100.84 (2561.34) | 3.14 (79.8) 3.2% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 5.05 (128.25) | 0 (0) 0% |
| Revolutions per mile (km) | 648.53 (402.97) | 628.32 (390.42) | -20.2 (-12.55) -3.1% |
285/45-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.64 mph (33.22 km/h) |
| 25 mph (40.23 km/h) | 25.8 mph (41.53 km/h) |
| 30 mph (48.28 km/h) | 30.96 mph (49.83 km/h) |
| 35 mph (56.33 km/h) | 36.13 mph (58.14 km/h) |
| 40 mph (64.37 km/h) | 41.29 mph (66.44 km/h) |
| 45 mph (72.42 km/h) | 46.45 mph (74.75 km/h) |
| 50 mph (80.47 km/h) | 51.61 mph (83.05 km/h) |
| 55 mph (88.51 km/h) | 56.77 mph (91.36 km/h) |
| 60 mph (96.56 km/h) | 61.93 mph (99.67 km/h) |
| 65 mph (104.61 km/h) | 67.09 mph (107.97 km/h) |
| 70 mph (112.65 km/h) | 72.25 mph (116.28 km/h) |
| 75 mph (120.7 km/h) | 77.41 mph (124.58 km/h) |
| 80 mph (128.75 km/h) | 82.57 mph (132.89 km/h) |
| 85 mph (136.79 km/h) | 87.73 mph (141.19 km/h) |
| 90 mph (144.84 km/h) | 92.89 mph (149.5 km/h) |
| 95 mph (152.89 km/h) | 98.05 mph (157.8 km/h) |
| 100 mph (160.93 km/h) | 103.22 mph (166.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1599 | 1858 | 2000 | 2089 | 2184 | 2252 | 2327 | 2415 | 2538 | 2660 | 2796 | 2905 | 3103 | 3320 | 3490 | 3599 | 3661 | 3885 | 4198 | 4879 |
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