Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 385/65-22.5 | 445/65-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.2 (1072) | 45.28 (1150) | 3.07 (78) 7.3% |
| Width inches (mm) | 15.16 (385) | 17.52 (445) | 2.36 (60) 15.6% |
| Circum. inches (mm) | 132.59 (3367.79) | 142.24 (3612.83) | 9.65 (245.04) 7.3% |
| Sidewall Height inches (mm) | 9.85 (250.25) | 11.39 (289.25) | 1.54 (39) 15.6% |
| Revolutions per mile (km) | 477.86 (296.93) | 445.45 (276.79) | -32.41 (-20.14) -6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.46 mph (34.53 km/h) |
| 25 mph (40.23 km/h) | 26.82 mph (43.16 km/h) |
| 30 mph (48.28 km/h) | 32.18 mph (51.79 km/h) |
| 35 mph (56.33 km/h) | 37.55 mph (60.43 km/h) |
| 40 mph (64.37 km/h) | 42.91 mph (69.06 km/h) |
| 45 mph (72.42 km/h) | 48.27 mph (77.69 km/h) |
| 50 mph (80.47 km/h) | 53.64 mph (86.32 km/h) |
| 55 mph (88.51 km/h) | 59 mph (94.95 km/h) |
| 60 mph (96.56 km/h) | 64.37 mph (103.59 km/h) |
| 65 mph (104.61 km/h) | 69.73 mph (112.22 km/h) |
| 70 mph (112.65 km/h) | 75.09 mph (120.85 km/h) |
| 75 mph (120.7 km/h) | 80.46 mph (129.48 km/h) |
| 80 mph (128.75 km/h) | 85.82 mph (138.12 km/h) |
| 85 mph (136.79 km/h) | 91.18 mph (146.75 km/h) |
| 90 mph (144.84 km/h) | 96.55 mph (155.38 km/h) |
| 95 mph (152.89 km/h) | 101.91 mph (164.01 km/h) |
| 100 mph (160.93 km/h) | 107.28 mph (172.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
