Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-21 | 285/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.91 (835.9) | 32.1 (815.3) | -0.81 (-20.6) -2.5% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 103.39 (2626.06) | 100.84 (2561.34) | -2.55 (-64.72) -2.5% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 5.05 (128.25) | -0.91 (-23) -15.2% |
| Revolutions per mile (km) | 612.84 (380.8) | 628.32 (390.42) | 15.48 (9.62) 2.5% |
285/45-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.39 km/h) |
| 25 mph (40.23 km/h) | 24.38 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.09 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.94 km/h) |
| 40 mph (64.37 km/h) | 39.01 mph (62.79 km/h) |
| 45 mph (72.42 km/h) | 43.89 mph (70.64 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.48 km/h) |
| 55 mph (88.51 km/h) | 53.64 mph (86.33 km/h) |
| 60 mph (96.56 km/h) | 58.52 mph (94.18 km/h) |
| 65 mph (104.61 km/h) | 63.4 mph (102.03 km/h) |
| 70 mph (112.65 km/h) | 68.27 mph (109.88 km/h) |
| 75 mph (120.7 km/h) | 73.15 mph (117.73 km/h) |
| 80 mph (128.75 km/h) | 78.03 mph (125.57 km/h) |
| 85 mph (136.79 km/h) | 82.91 mph (133.42 km/h) |
| 90 mph (144.84 km/h) | 87.78 mph (141.27 km/h) |
| 95 mph (152.89 km/h) | 92.66 mph (149.12 km/h) |
| 100 mph (160.93 km/h) | 97.54 mph (156.97 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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