Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/75-18 | 285/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.65 (854.7) | 33.71 (856.2) | 0.06 (1.5) 0.2% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 105.71 (2685.12) | 105.9 (2689.83) | 0.19 (4.71) 0.2% |
| Sidewall Height inches (mm) | 7.82 (198.75) | 7.85 (199.5) | 0.03 (0.75) 0.4% |
| Revolutions per mile (km) | 599.36 (372.42) | 598.31 (371.77) | -1.05 (-0.65) -0.2% |
285/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.04 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.3 km/h) |
| 30 mph (48.28 km/h) | 30.05 mph (48.37 km/h) |
| 35 mph (56.33 km/h) | 35.06 mph (56.43 km/h) |
| 40 mph (64.37 km/h) | 40.07 mph (64.49 km/h) |
| 45 mph (72.42 km/h) | 45.08 mph (72.55 km/h) |
| 50 mph (80.47 km/h) | 50.09 mph (80.61 km/h) |
| 55 mph (88.51 km/h) | 55.1 mph (88.67 km/h) |
| 60 mph (96.56 km/h) | 60.11 mph (96.73 km/h) |
| 65 mph (104.61 km/h) | 65.11 mph (104.79 km/h) |
| 70 mph (112.65 km/h) | 70.12 mph (112.85 km/h) |
| 75 mph (120.7 km/h) | 75.13 mph (120.91 km/h) |
| 80 mph (128.75 km/h) | 80.14 mph (128.97 km/h) |
| 85 mph (136.79 km/h) | 85.15 mph (137.03 km/h) |
| 90 mph (144.84 km/h) | 90.16 mph (145.1 km/h) |
| 95 mph (152.89 km/h) | 95.17 mph (153.16 km/h) |
| 100 mph (160.93 km/h) | 100.18 mph (161.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1523 | 1769 | 1905 | 1989 | 2080 | 2145 | 2216 | 2300 | 2417 | 2533 | 2663 | 2767 | 2954 | 3162 | 3324 | 3427 | 3486 | 3700 | 3998 | 4645 |
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