Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 445/45-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 35.27 (895.8) | -10.01 (-254.2) -22.1% |
| Width inches (mm) | 17.52 (445) | 17.52 (445) | 0 (0) 0% |
| Circum. inches (mm) | 142.24 (3612.83) | 110.8 (2814.24) | -31.44 (-798.59) -22.1% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 7.88 (200.25) | -3.5 (-89) -30.8% |
| Revolutions per mile (km) | 445.45 (276.79) | 571.86 (355.34) | 126.41 (78.54) 28.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.58 mph (25.07 km/h) |
| 25 mph (40.23 km/h) | 19.47 mph (31.34 km/h) |
| 30 mph (48.28 km/h) | 23.37 mph (37.61 km/h) |
| 35 mph (56.33 km/h) | 27.26 mph (43.88 km/h) |
| 40 mph (64.37 km/h) | 31.16 mph (50.14 km/h) |
| 45 mph (72.42 km/h) | 35.05 mph (56.41 km/h) |
| 50 mph (80.47 km/h) | 38.95 mph (62.68 km/h) |
| 55 mph (88.51 km/h) | 42.84 mph (68.95 km/h) |
| 60 mph (96.56 km/h) | 46.74 mph (75.22 km/h) |
| 65 mph (104.61 km/h) | 50.63 mph (81.48 km/h) |
| 70 mph (112.65 km/h) | 54.53 mph (87.75 km/h) |
| 75 mph (120.7 km/h) | 58.42 mph (94.02 km/h) |
| 80 mph (128.75 km/h) | 62.32 mph (100.29 km/h) |
| 85 mph (136.79 km/h) | 66.21 mph (106.56 km/h) |
| 90 mph (144.84 km/h) | 70.11 mph (112.83 km/h) |
| 95 mph (152.89 km/h) | 74 mph (119.09 km/h) |
| 100 mph (160.93 km/h) | 77.9 mph (125.36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1455 | 1691 | 1821 | 1901 | 1988 | 2050 | 2118 | 2198 | 2310 | 2421 | 2545 | 2644 | 2824 | 3022 | 3177 | 3276 | 3332 | 3536 | 3821 | 4440 |
Better Fuel Economy Factory Ratios Increased Power
