Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 38/15.5-20 | 355/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.99 (965.04) | 36.77 (934) | -1.22 (-31.04) -3.2% |
| Width inches (mm) | 15.51 (394) | 13.98 (355) | -1.54 (-39) -9.9% |
| Circum. inches (mm) | 119.36 (3031.76) | 115.52 (2934.25) | -3.84 (-97.52) -3.2% |
| Sidewall Height inches (mm) | 9 (228.52) | 8.39 (213) | -0.61 (-15.52) -6.8% |
| Revolutions per mile (km) | 530.83 (329.84) | 548.47 (340.8) | 17.64 (10.96) 3.3% |
355/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.36 mph (31.15 km/h) |
| 25 mph (40.23 km/h) | 24.2 mph (38.94 km/h) |
| 30 mph (48.28 km/h) | 29.04 mph (46.73 km/h) |
| 35 mph (56.33 km/h) | 33.87 mph (54.52 km/h) |
| 40 mph (64.37 km/h) | 38.71 mph (62.3 km/h) |
| 45 mph (72.42 km/h) | 43.55 mph (70.09 km/h) |
| 50 mph (80.47 km/h) | 48.39 mph (77.88 km/h) |
| 55 mph (88.51 km/h) | 53.23 mph (85.67 km/h) |
| 60 mph (96.56 km/h) | 58.07 mph (93.45 km/h) |
| 65 mph (104.61 km/h) | 62.91 mph (101.24 km/h) |
| 70 mph (112.65 km/h) | 67.75 mph (109.03 km/h) |
| 75 mph (120.7 km/h) | 72.59 mph (116.82 km/h) |
| 80 mph (128.75 km/h) | 77.43 mph (124.61 km/h) |
| 85 mph (136.79 km/h) | 82.27 mph (132.39 km/h) |
| 90 mph (144.84 km/h) | 87.11 mph (140.18 km/h) |
| 95 mph (152.89 km/h) | 91.94 mph (147.97 km/h) |
| 100 mph (160.93 km/h) | 96.78 mph (155.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1396 | 1621 | 1746 | 1823 | 1907 | 1966 | 2031 | 2108 | 2215 | 2322 | 2441 | 2536 | 2708 | 2898 | 3047 | 3142 | 3195 | 3391 | 3665 | 4259 |
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