Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 385/65-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 42.2 (1072) | -3.07 (-78) -6.8% |
| Width inches (mm) | 17.52 (445) | 15.16 (385) | -2.36 (-60) -13.5% |
| Circum. inches (mm) | 142.24 (3612.83) | 132.59 (3367.79) | -9.65 (-245.04) -6.8% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 9.85 (250.25) | -1.54 (-39) -13.5% |
| Revolutions per mile (km) | 445.45 (276.79) | 477.86 (296.93) | 32.41 (20.14) 7.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.64 mph (30 km/h) |
| 25 mph (40.23 km/h) | 23.3 mph (37.5 km/h) |
| 30 mph (48.28 km/h) | 27.97 mph (45.01 km/h) |
| 35 mph (56.33 km/h) | 32.63 mph (52.51 km/h) |
| 40 mph (64.37 km/h) | 37.29 mph (60.01 km/h) |
| 45 mph (72.42 km/h) | 41.95 mph (67.51 km/h) |
| 50 mph (80.47 km/h) | 46.61 mph (75.01 km/h) |
| 55 mph (88.51 km/h) | 51.27 mph (82.51 km/h) |
| 60 mph (96.56 km/h) | 55.93 mph (90.01 km/h) |
| 65 mph (104.61 km/h) | 60.59 mph (97.51 km/h) |
| 70 mph (112.65 km/h) | 65.25 mph (105.01 km/h) |
| 75 mph (120.7 km/h) | 69.91 mph (112.51 km/h) |
| 80 mph (128.75 km/h) | 74.57 mph (120.02 km/h) |
| 85 mph (136.79 km/h) | 79.23 mph (127.52 km/h) |
| 90 mph (144.84 km/h) | 83.9 mph (135.02 km/h) |
| 95 mph (152.89 km/h) | 88.56 mph (142.52 km/h) |
| 100 mph (160.93 km/h) | 93.22 mph (150.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1216 | 1413 | 1521 | 1589 | 1661 | 1713 | 1770 | 1837 | 1930 | 2023 | 2127 | 2210 | 2360 | 2525 | 2655 | 2737 | 2784 | 2955 | 3193 | 3710 |
Better Fuel Economy Factory Ratios Increased Power
