Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 38/13.5-20 | 315/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.1 (967.62) | 34.6 (878.9) | -3.49 (-88.72) -9.2% |
| Width inches (mm) | 13.5 (343) | 12.4 (315) | -1.1 (-28) -8.2% |
| Circum. inches (mm) | 119.68 (3039.87) | 108.71 (2761.15) | -10.97 (-278.72) -9.2% |
| Sidewall Height inches (mm) | 9.05 (229.81) | 9.3 (236.25) | 0.25 (6.44) 2.8% |
| Revolutions per mile (km) | 529.41 (328.96) | 582.85 (362.17) | 53.44 (33.21) 10.1% |
315/75-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.17 mph (29.24 km/h) |
| 25 mph (40.23 km/h) | 22.71 mph (36.54 km/h) |
| 30 mph (48.28 km/h) | 27.25 mph (43.85 km/h) |
| 35 mph (56.33 km/h) | 31.79 mph (51.16 km/h) |
| 40 mph (64.37 km/h) | 36.33 mph (58.47 km/h) |
| 45 mph (72.42 km/h) | 40.87 mph (65.78 km/h) |
| 50 mph (80.47 km/h) | 45.42 mph (73.09 km/h) |
| 55 mph (88.51 km/h) | 49.96 mph (80.4 km/h) |
| 60 mph (96.56 km/h) | 54.5 mph (87.71 km/h) |
| 65 mph (104.61 km/h) | 59.04 mph (95.02 km/h) |
| 70 mph (112.65 km/h) | 63.58 mph (102.33 km/h) |
| 75 mph (120.7 km/h) | 68.12 mph (109.63 km/h) |
| 80 mph (128.75 km/h) | 72.66 mph (116.94 km/h) |
| 85 mph (136.79 km/h) | 77.21 mph (124.25 km/h) |
| 90 mph (144.84 km/h) | 81.75 mph (131.56 km/h) |
| 95 mph (152.89 km/h) | 86.29 mph (138.87 km/h) |
| 100 mph (160.93 km/h) | 90.83 mph (146.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1483 | 1723 | 1856 | 1938 | 2026 | 2089 | 2159 | 2241 | 2354 | 2468 | 2594 | 2695 | 2878 | 3080 | 3238 | 3339 | 3396 | 3604 | 3894 | 4525 |
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