Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-22.5 | 445/65-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.34 (1075.5) | 45.28 (1150) | 2.93 (74.5) 6.9% |
| Width inches (mm) | 12.4 (315) | 17.52 (445) | 5.12 (130) 41.3% |
| Circum. inches (mm) | 133.02 (3378.78) | 142.24 (3612.83) | 9.21 (234.05) 6.9% |
| Sidewall Height inches (mm) | 9.92 (252) | 11.39 (289.25) | 1.47 (37.25) 14.8% |
| Revolutions per mile (km) | 476.31 (295.96) | 445.45 (276.79) | -30.86 (-19.17) -6.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.39 mph (34.42 km/h) |
| 25 mph (40.23 km/h) | 26.73 mph (43.02 km/h) |
| 30 mph (48.28 km/h) | 32.08 mph (51.62 km/h) |
| 35 mph (56.33 km/h) | 37.42 mph (60.23 km/h) |
| 40 mph (64.37 km/h) | 42.77 mph (68.83 km/h) |
| 45 mph (72.42 km/h) | 48.12 mph (77.44 km/h) |
| 50 mph (80.47 km/h) | 53.46 mph (86.04 km/h) |
| 55 mph (88.51 km/h) | 58.81 mph (94.65 km/h) |
| 60 mph (96.56 km/h) | 64.16 mph (103.25 km/h) |
| 65 mph (104.61 km/h) | 69.5 mph (111.85 km/h) |
| 70 mph (112.65 km/h) | 74.85 mph (120.46 km/h) |
| 75 mph (120.7 km/h) | 80.2 mph (129.06 km/h) |
| 80 mph (128.75 km/h) | 85.54 mph (137.67 km/h) |
| 85 mph (136.79 km/h) | 90.89 mph (146.27 km/h) |
| 90 mph (144.84 km/h) | 96.23 mph (154.87 km/h) |
| 95 mph (152.89 km/h) | 101.58 mph (163.48 km/h) |
| 100 mph (160.93 km/h) | 106.93 mph (172.08 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
