Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/50-20 | 285/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.22 (793) | 32.1 (815.3) | 0.88 (22.3) 2.8% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 98.08 (2491.28) | 100.84 (2561.34) | 2.76 (70.06) 2.8% |
| Sidewall Height inches (mm) | 5.61 (142.5) | 5.05 (128.25) | -0.56 (-14.25) -10% |
| Revolutions per mile (km) | 645.99 (401.4) | 628.32 (390.42) | -17.67 (-10.98) -2.7% |
285/45-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.56 mph (33.09 km/h) |
| 25 mph (40.23 km/h) | 25.7 mph (41.37 km/h) |
| 30 mph (48.28 km/h) | 30.84 mph (49.64 km/h) |
| 35 mph (56.33 km/h) | 35.98 mph (57.91 km/h) |
| 40 mph (64.37 km/h) | 41.12 mph (66.18 km/h) |
| 45 mph (72.42 km/h) | 46.27 mph (74.46 km/h) |
| 50 mph (80.47 km/h) | 51.41 mph (82.73 km/h) |
| 55 mph (88.51 km/h) | 56.55 mph (91 km/h) |
| 60 mph (96.56 km/h) | 61.69 mph (99.28 km/h) |
| 65 mph (104.61 km/h) | 66.83 mph (107.55 km/h) |
| 70 mph (112.65 km/h) | 71.97 mph (115.82 km/h) |
| 75 mph (120.7 km/h) | 77.11 mph (124.1 km/h) |
| 80 mph (128.75 km/h) | 82.25 mph (132.37 km/h) |
| 85 mph (136.79 km/h) | 87.39 mph (140.64 km/h) |
| 90 mph (144.84 km/h) | 92.53 mph (148.91 km/h) |
| 95 mph (152.89 km/h) | 97.67 mph (157.19 km/h) |
| 100 mph (160.93 km/h) | 102.81 mph (165.46 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 |
Better Fuel Economy Factory Ratios Increased Power
