Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-20 | 285/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.66 (728) | 32.83 (833.9) | 4.17 (105.9) 14.5% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 90.04 (2287.08) | 103.14 (2619.77) | 13.1 (332.69) 14.5% |
| Sidewall Height inches (mm) | 4.33 (110) | 8.42 (213.75) | 4.08 (103.75) 94.3% |
| Revolutions per mile (km) | 703.67 (437.24) | 614.31 (381.71) | -89.36 (-55.53) -12.7% |
285/75-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.91 mph (36.87 km/h) |
| 25 mph (40.23 km/h) | 28.64 mph (46.09 km/h) |
| 30 mph (48.28 km/h) | 34.36 mph (55.3 km/h) |
| 35 mph (56.33 km/h) | 40.09 mph (64.52 km/h) |
| 40 mph (64.37 km/h) | 45.82 mph (73.74 km/h) |
| 45 mph (72.42 km/h) | 51.55 mph (82.96 km/h) |
| 50 mph (80.47 km/h) | 57.27 mph (92.17 km/h) |
| 55 mph (88.51 km/h) | 63 mph (101.39 km/h) |
| 60 mph (96.56 km/h) | 68.73 mph (110.61 km/h) |
| 65 mph (104.61 km/h) | 74.46 mph (119.82 km/h) |
| 70 mph (112.65 km/h) | 80.18 mph (129.04 km/h) |
| 75 mph (120.7 km/h) | 85.91 mph (138.26 km/h) |
| 80 mph (128.75 km/h) | 91.64 mph (147.48 km/h) |
| 85 mph (136.79 km/h) | 97.36 mph (156.69 km/h) |
| 90 mph (144.84 km/h) | 103.09 mph (165.91 km/h) |
| 95 mph (152.89 km/h) | 108.82 mph (175.13 km/h) |
| 100 mph (160.93 km/h) | 114.55 mph (184.35 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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