Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/50-22.5 | 445/45-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.02 (1016.5) | 35.27 (895.8) | -4.75 (-120.7) -11.9% |
| Width inches (mm) | 17.52 (445) | 17.52 (445) | 0 (0) 0% |
| Circum. inches (mm) | 125.73 (3193.43) | 110.8 (2814.24) | -14.93 (-379.19) -11.9% |
| Sidewall Height inches (mm) | 8.76 (222.5) | 7.88 (200.25) | -0.88 (-22.25) -10% |
| Revolutions per mile (km) | 503.95 (313.14) | 571.86 (355.34) | 67.9 (42.19) 13.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.63 mph (28.37 km/h) |
| 25 mph (40.23 km/h) | 22.03 mph (35.46 km/h) |
| 30 mph (48.28 km/h) | 26.44 mph (42.55 km/h) |
| 35 mph (56.33 km/h) | 30.84 mph (49.64 km/h) |
| 40 mph (64.37 km/h) | 35.25 mph (56.73 km/h) |
| 45 mph (72.42 km/h) | 39.66 mph (63.82 km/h) |
| 50 mph (80.47 km/h) | 44.06 mph (70.91 km/h) |
| 55 mph (88.51 km/h) | 48.47 mph (78 km/h) |
| 60 mph (96.56 km/h) | 52.88 mph (85.1 km/h) |
| 65 mph (104.61 km/h) | 57.28 mph (92.19 km/h) |
| 70 mph (112.65 km/h) | 61.69 mph (99.28 km/h) |
| 75 mph (120.7 km/h) | 66.09 mph (106.37 km/h) |
| 80 mph (128.75 km/h) | 70.5 mph (113.46 km/h) |
| 85 mph (136.79 km/h) | 74.91 mph (120.55 km/h) |
| 90 mph (144.84 km/h) | 79.31 mph (127.64 km/h) |
| 95 mph (152.89 km/h) | 83.72 mph (134.73 km/h) |
| 100 mph (160.93 km/h) | 88.13 mph (141.83 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 |
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