Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 385/65-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 41.7 (1059.3) | -1.29 (-32.7) -3% |
| Width inches (mm) | 14.37 (365) | 15.16 (385) | 0.79 (20) 5.5% |
| Circum. inches (mm) | 135.06 (3430.62) | 131.02 (3327.89) | -4.04 (-102.73) -3% |
| Sidewall Height inches (mm) | 11.5 (292) | 9.85 (250.25) | -1.64 (-41.75) -14.3% |
| Revolutions per mile (km) | 469.11 (291.49) | 483.59 (300.49) | 14.48 (9) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.22 km/h) |
| 25 mph (40.23 km/h) | 24.25 mph (39.03 km/h) |
| 30 mph (48.28 km/h) | 29.1 mph (46.83 km/h) |
| 35 mph (56.33 km/h) | 33.95 mph (54.64 km/h) |
| 40 mph (64.37 km/h) | 38.8 mph (62.45 km/h) |
| 45 mph (72.42 km/h) | 43.65 mph (70.25 km/h) |
| 50 mph (80.47 km/h) | 48.5 mph (78.06 km/h) |
| 55 mph (88.51 km/h) | 53.35 mph (85.86 km/h) |
| 60 mph (96.56 km/h) | 58.2 mph (93.67 km/h) |
| 65 mph (104.61 km/h) | 63.05 mph (101.48 km/h) |
| 70 mph (112.65 km/h) | 67.9 mph (109.28 km/h) |
| 75 mph (120.7 km/h) | 72.75 mph (117.09 km/h) |
| 80 mph (128.75 km/h) | 77.6 mph (124.89 km/h) |
| 85 mph (136.79 km/h) | 82.45 mph (132.7 km/h) |
| 90 mph (144.84 km/h) | 87.3 mph (140.5 km/h) |
| 95 mph (152.89 km/h) | 92.16 mph (148.31 km/h) |
| 100 mph (160.93 km/h) | 97.01 mph (156.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1231 | 1430 | 1540 | 1608 | 1681 | 1733 | 1791 | 1859 | 1953 | 2048 | 2152 | 2236 | 2388 | 2556 | 2686 | 2770 | 2817 | 2990 | 3231 | 3755 |
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