Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-20 | 285/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.04 (788.5) | 32.1 (815.3) | 1.06 (26.8) 3.4% |
| Width inches (mm) | 10.04 (255) | 11.22 (285) | 1.18 (30) 11.8% |
| Circum. inches (mm) | 97.53 (2477.15) | 100.84 (2561.34) | 3.31 (84.19) 3.4% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 5.05 (128.25) | -0.47 (-12) -8.6% |
| Revolutions per mile (km) | 649.68 (403.69) | 628.32 (390.42) | -21.36 (-13.27) -3.3% |
285/45-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.68 mph (33.28 km/h) |
| 25 mph (40.23 km/h) | 25.85 mph (41.6 km/h) |
| 30 mph (48.28 km/h) | 31.02 mph (49.92 km/h) |
| 35 mph (56.33 km/h) | 36.19 mph (58.24 km/h) |
| 40 mph (64.37 km/h) | 41.36 mph (66.56 km/h) |
| 45 mph (72.42 km/h) | 46.53 mph (74.88 km/h) |
| 50 mph (80.47 km/h) | 51.7 mph (83.2 km/h) |
| 55 mph (88.51 km/h) | 56.87 mph (91.52 km/h) |
| 60 mph (96.56 km/h) | 62.04 mph (99.84 km/h) |
| 65 mph (104.61 km/h) | 67.21 mph (108.16 km/h) |
| 70 mph (112.65 km/h) | 72.38 mph (116.48 km/h) |
| 75 mph (120.7 km/h) | 77.55 mph (124.8 km/h) |
| 80 mph (128.75 km/h) | 82.72 mph (133.12 km/h) |
| 85 mph (136.79 km/h) | 87.89 mph (141.44 km/h) |
| 90 mph (144.84 km/h) | 93.06 mph (149.76 km/h) |
| 95 mph (152.89 km/h) | 98.23 mph (158.08 km/h) |
| 100 mph (160.93 km/h) | 103.4 mph (166.4 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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