Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 375/75-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 44.65 (1134) | -0.63 (-16) -1.4% |
| Width inches (mm) | 17.52 (445) | 14.76 (375) | -2.76 (-70) -15.7% |
| Circum. inches (mm) | 142.24 (3612.83) | 140.26 (3562.57) | -1.98 (-50.27) -1.4% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 11.07 (281.25) | -0.31 (-8) -2.8% |
| Revolutions per mile (km) | 445.45 (276.79) | 451.74 (280.7) | 6.29 (3.91) 1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.72 mph (31.74 km/h) |
| 25 mph (40.23 km/h) | 24.65 mph (39.67 km/h) |
| 30 mph (48.28 km/h) | 29.58 mph (47.61 km/h) |
| 35 mph (56.33 km/h) | 34.51 mph (55.54 km/h) |
| 40 mph (64.37 km/h) | 39.44 mph (63.48 km/h) |
| 45 mph (72.42 km/h) | 44.37 mph (71.41 km/h) |
| 50 mph (80.47 km/h) | 49.3 mph (79.35 km/h) |
| 55 mph (88.51 km/h) | 54.23 mph (87.28 km/h) |
| 60 mph (96.56 km/h) | 59.17 mph (95.22 km/h) |
| 65 mph (104.61 km/h) | 64.1 mph (103.15 km/h) |
| 70 mph (112.65 km/h) | 69.03 mph (111.09 km/h) |
| 75 mph (120.7 km/h) | 73.96 mph (119.02 km/h) |
| 80 mph (128.75 km/h) | 78.89 mph (126.96 km/h) |
| 85 mph (136.79 km/h) | 83.82 mph (134.89 km/h) |
| 90 mph (144.84 km/h) | 88.75 mph (142.83 km/h) |
| 95 mph (152.89 km/h) | 93.68 mph (150.76 km/h) |
| 100 mph (160.93 km/h) | 98.61 mph (158.7 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
