Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 365/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 42.99 (1092) | -2.28 (-58) -5% |
| Width inches (mm) | 17.52 (445) | 14.37 (365) | -3.15 (-80) -18% |
| Circum. inches (mm) | 142.24 (3612.83) | 135.06 (3430.62) | -7.17 (-182.21) -5% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 11.5 (292) | 0.11 (2.75) 1% |
| Revolutions per mile (km) | 445.45 (276.79) | 469.11 (291.49) | 23.66 (14.7) 5.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.99 mph (30.56 km/h) |
| 25 mph (40.23 km/h) | 23.74 mph (38.2 km/h) |
| 30 mph (48.28 km/h) | 28.49 mph (45.85 km/h) |
| 35 mph (56.33 km/h) | 33.23 mph (53.49 km/h) |
| 40 mph (64.37 km/h) | 37.98 mph (61.13 km/h) |
| 45 mph (72.42 km/h) | 42.73 mph (68.77 km/h) |
| 50 mph (80.47 km/h) | 47.48 mph (76.41 km/h) |
| 55 mph (88.51 km/h) | 52.23 mph (84.05 km/h) |
| 60 mph (96.56 km/h) | 56.97 mph (91.69 km/h) |
| 65 mph (104.61 km/h) | 61.72 mph (99.33 km/h) |
| 70 mph (112.65 km/h) | 66.47 mph (106.97 km/h) |
| 75 mph (120.7 km/h) | 71.22 mph (114.61 km/h) |
| 80 mph (128.75 km/h) | 75.97 mph (122.25 km/h) |
| 85 mph (136.79 km/h) | 80.71 mph (129.9 km/h) |
| 90 mph (144.84 km/h) | 85.46 mph (137.54 km/h) |
| 95 mph (152.89 km/h) | 90.21 mph (145.18 km/h) |
| 100 mph (160.93 km/h) | 94.96 mph (152.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1194 | 1387 | 1494 | 1560 | 1631 | 1681 | 1737 | 1803 | 1895 | 1986 | 2088 | 2169 | 2316 | 2479 | 2606 | 2687 | 2733 | 2901 | 3134 | 3642 |
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