Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 38/13.5-20 | 350/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.1 (967.62) | 36.67 (931.4) | -1.43 (-36.22) -3.7% |
| Width inches (mm) | 13.5 (343) | 13.78 (350) | 0.28 (7) 2% |
| Circum. inches (mm) | 119.68 (3039.87) | 115.2 (2926.08) | -4.48 (-113.79) -3.7% |
| Sidewall Height inches (mm) | 9.05 (229.81) | 10.33 (262.5) | 1.29 (32.69) 14.2% |
| Revolutions per mile (km) | 529.41 (328.96) | 550 (341.75) | 20.59 (12.79) 3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.98 km/h) |
| 25 mph (40.23 km/h) | 24.06 mph (38.73 km/h) |
| 30 mph (48.28 km/h) | 28.88 mph (46.47 km/h) |
| 35 mph (56.33 km/h) | 33.69 mph (54.22 km/h) |
| 40 mph (64.37 km/h) | 38.5 mph (61.96 km/h) |
| 45 mph (72.42 km/h) | 43.32 mph (69.71 km/h) |
| 50 mph (80.47 km/h) | 48.13 mph (77.46 km/h) |
| 55 mph (88.51 km/h) | 52.94 mph (85.2 km/h) |
| 60 mph (96.56 km/h) | 57.75 mph (92.95 km/h) |
| 65 mph (104.61 km/h) | 62.57 mph (100.69 km/h) |
| 70 mph (112.65 km/h) | 67.38 mph (108.44 km/h) |
| 75 mph (120.7 km/h) | 72.19 mph (116.18 km/h) |
| 80 mph (128.75 km/h) | 77.01 mph (123.93 km/h) |
| 85 mph (136.79 km/h) | 81.82 mph (131.67 km/h) |
| 90 mph (144.84 km/h) | 86.63 mph (139.42 km/h) |
| 95 mph (152.89 km/h) | 91.44 mph (147.17 km/h) |
| 100 mph (160.93 km/h) | 96.26 mph (154.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1400 | 1626 | 1751 | 1828 | 1912 | 1971 | 2037 | 2114 | 2222 | 2329 | 2448 | 2543 | 2716 | 2906 | 3055 | 3151 | 3204 | 3401 | 3675 | 4270 |
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