Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 385/65-22.5 | 445/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.2 (1072) | 41.77 (1061) | -0.43 (-11) -1% |
| Width inches (mm) | 15.16 (385) | 17.52 (445) | 2.36 (60) 15.6% |
| Circum. inches (mm) | 132.59 (3367.79) | 131.23 (3333.23) | -1.36 (-34.56) -1% |
| Sidewall Height inches (mm) | 9.85 (250.25) | 9.64 (244.75) | -0.22 (-5.5) -2.2% |
| Revolutions per mile (km) | 477.86 (296.93) | 482.82 (300.01) | 4.95 (3.08) 1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.79 mph (31.86 km/h) |
| 25 mph (40.23 km/h) | 24.74 mph (39.82 km/h) |
| 30 mph (48.28 km/h) | 29.69 mph (47.78 km/h) |
| 35 mph (56.33 km/h) | 34.64 mph (55.75 km/h) |
| 40 mph (64.37 km/h) | 39.59 mph (63.71 km/h) |
| 45 mph (72.42 km/h) | 44.54 mph (71.68 km/h) |
| 50 mph (80.47 km/h) | 49.49 mph (79.64 km/h) |
| 55 mph (88.51 km/h) | 54.44 mph (87.61 km/h) |
| 60 mph (96.56 km/h) | 59.38 mph (95.57 km/h) |
| 65 mph (104.61 km/h) | 64.33 mph (103.53 km/h) |
| 70 mph (112.65 km/h) | 69.28 mph (111.5 km/h) |
| 75 mph (120.7 km/h) | 74.23 mph (119.46 km/h) |
| 80 mph (128.75 km/h) | 79.18 mph (127.43 km/h) |
| 85 mph (136.79 km/h) | 84.13 mph (135.39 km/h) |
| 90 mph (144.84 km/h) | 89.08 mph (143.35 km/h) |
| 95 mph (152.89 km/h) | 94.03 mph (151.32 km/h) |
| 100 mph (160.93 km/h) | 98.97 mph (159.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1229 | 1427 | 1537 | 1605 | 1678 | 1731 | 1788 | 1856 | 1950 | 2044 | 2149 | 2233 | 2384 | 2551 | 2682 | 2766 | 2813 | 2985 | 3226 | 3749 |
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