Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 31/10.5-15 | 285/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.98 (786.84) | 32.83 (833.9) | 1.85 (47.06) 6% |
| Width inches (mm) | 10.51 (267) | 11.22 (285) | 0.71 (18) 6.7% |
| Circum. inches (mm) | 97.32 (2471.93) | 103.14 (2619.77) | 5.82 (147.84) 6% |
| Sidewall Height inches (mm) | 7.99 (202.92) | 8.42 (213.75) | 0.43 (10.83) 5.3% |
| Revolutions per mile (km) | 651.05 (404.54) | 614.31 (381.71) | -36.74 (-22.83) -5.6% |
285/75-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.2 mph (34.11 km/h) |
| 25 mph (40.23 km/h) | 26.5 mph (42.64 km/h) |
| 30 mph (48.28 km/h) | 31.79 mph (51.17 km/h) |
| 35 mph (56.33 km/h) | 37.09 mph (59.7 km/h) |
| 40 mph (64.37 km/h) | 42.39 mph (68.22 km/h) |
| 45 mph (72.42 km/h) | 47.69 mph (76.75 km/h) |
| 50 mph (80.47 km/h) | 52.99 mph (85.28 km/h) |
| 55 mph (88.51 km/h) | 58.29 mph (93.81 km/h) |
| 60 mph (96.56 km/h) | 63.59 mph (102.34 km/h) |
| 65 mph (104.61 km/h) | 68.89 mph (110.86 km/h) |
| 70 mph (112.65 km/h) | 74.19 mph (119.39 km/h) |
| 75 mph (120.7 km/h) | 79.49 mph (127.92 km/h) |
| 80 mph (128.75 km/h) | 84.78 mph (136.45 km/h) |
| 85 mph (136.79 km/h) | 90.08 mph (144.98 km/h) |
| 90 mph (144.84 km/h) | 95.38 mph (153.5 km/h) |
| 95 mph (152.89 km/h) | 100.68 mph (162.03 km/h) |
| 100 mph (160.93 km/h) | 105.98 mph (170.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1563 | 1816 | 1956 | 2042 | 2135 | 2202 | 2275 | 2362 | 2481 | 2601 | 2734 | 2841 | 3033 | 3246 | 3413 | 3519 | 3579 | 3798 | 4104 | 4770 |
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