Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/50-22.5 | 445/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.02 (1016.5) | 41.77 (1061) | 1.75 (44.5) 4.4% |
| Width inches (mm) | 17.52 (445) | 17.52 (445) | 0 (0) 0% |
| Circum. inches (mm) | 125.73 (3193.43) | 131.23 (3333.23) | 5.5 (139.8) 4.4% |
| Sidewall Height inches (mm) | 8.76 (222.5) | 9.64 (244.75) | 0.88 (22.25) 10% |
| Revolutions per mile (km) | 503.95 (313.14) | 482.82 (300.01) | -21.14 (-13.13) -4.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.09 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.31 mph (50.39 km/h) |
| 35 mph (56.33 km/h) | 36.53 mph (58.79 km/h) |
| 40 mph (64.37 km/h) | 41.75 mph (67.19 km/h) |
| 45 mph (72.42 km/h) | 46.97 mph (75.59 km/h) |
| 50 mph (80.47 km/h) | 52.19 mph (83.99 km/h) |
| 55 mph (88.51 km/h) | 57.41 mph (92.39 km/h) |
| 60 mph (96.56 km/h) | 62.63 mph (100.79 km/h) |
| 65 mph (104.61 km/h) | 67.85 mph (109.19 km/h) |
| 70 mph (112.65 km/h) | 73.06 mph (117.59 km/h) |
| 75 mph (120.7 km/h) | 78.28 mph (125.99 km/h) |
| 80 mph (128.75 km/h) | 83.5 mph (134.38 km/h) |
| 85 mph (136.79 km/h) | 88.72 mph (142.78 km/h) |
| 90 mph (144.84 km/h) | 93.94 mph (151.18 km/h) |
| 95 mph (152.89 km/h) | 99.16 mph (159.58 km/h) |
| 100 mph (160.93 km/h) | 104.38 mph (167.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1229 | 1427 | 1537 | 1605 | 1678 | 1731 | 1788 | 1856 | 1950 | 2044 | 2149 | 2233 | 2384 | 2551 | 2682 | 2766 | 2813 | 2985 | 3226 | 3749 |
Better Fuel Economy Factory Ratios Increased Power
