Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 255/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 36.56 (928.5) | -8.72 (-221.5) -19.3% |
| Width inches (mm) | 17.52 (445) | 10.04 (255) | -7.48 (-190) -42.7% |
| Circum. inches (mm) | 142.24 (3612.83) | 114.84 (2916.97) | -27.4 (-695.86) -19.3% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 7.03 (178.5) | -4.36 (-110.75) -38.3% |
| Revolutions per mile (km) | 445.45 (276.79) | 551.72 (342.82) | 106.27 (66.03) 23.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.15 mph (25.99 km/h) |
| 25 mph (40.23 km/h) | 20.18 mph (32.48 km/h) |
| 30 mph (48.28 km/h) | 24.22 mph (38.98 km/h) |
| 35 mph (56.33 km/h) | 28.26 mph (45.48 km/h) |
| 40 mph (64.37 km/h) | 32.3 mph (51.97 km/h) |
| 45 mph (72.42 km/h) | 36.33 mph (58.47 km/h) |
| 50 mph (80.47 km/h) | 40.37 mph (64.97 km/h) |
| 55 mph (88.51 km/h) | 44.41 mph (71.47 km/h) |
| 60 mph (96.56 km/h) | 48.44 mph (77.96 km/h) |
| 65 mph (104.61 km/h) | 52.48 mph (84.46 km/h) |
| 70 mph (112.65 km/h) | 56.52 mph (90.96 km/h) |
| 75 mph (120.7 km/h) | 60.55 mph (97.45 km/h) |
| 80 mph (128.75 km/h) | 64.59 mph (103.95 km/h) |
| 85 mph (136.79 km/h) | 68.63 mph (110.45 km/h) |
| 90 mph (144.84 km/h) | 72.67 mph (116.94 km/h) |
| 95 mph (152.89 km/h) | 76.7 mph (123.44 km/h) |
| 100 mph (160.93 km/h) | 80.74 mph (129.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1404 | 1631 | 1757 | 1834 | 1918 | 1978 | 2043 | 2121 | 2229 | 2336 | 2456 | 2551 | 2724 | 2916 | 3065 | 3161 | 3214 | 3411 | 3686 | 4284 |
Better Fuel Economy Factory Ratios Increased Power
