Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/60-18 | 285/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.94 (811.2) | 33.71 (856.2) | 1.77 (45) 5.5% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 100.33 (2548.46) | 105.9 (2689.83) | 5.57 (141.37) 5.5% |
| Sidewall Height inches (mm) | 6.97 (177) | 7.85 (199.5) | 0.89 (22.5) 12.7% |
| Revolutions per mile (km) | 631.5 (392.39) | 598.31 (371.77) | -33.19 (-20.62) -5.3% |
285/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.11 mph (33.97 km/h) |
| 25 mph (40.23 km/h) | 26.39 mph (42.47 km/h) |
| 30 mph (48.28 km/h) | 31.66 mph (50.96 km/h) |
| 35 mph (56.33 km/h) | 36.94 mph (59.45 km/h) |
| 40 mph (64.37 km/h) | 42.22 mph (67.94 km/h) |
| 45 mph (72.42 km/h) | 47.5 mph (76.44 km/h) |
| 50 mph (80.47 km/h) | 52.77 mph (84.93 km/h) |
| 55 mph (88.51 km/h) | 58.05 mph (93.42 km/h) |
| 60 mph (96.56 km/h) | 63.33 mph (101.92 km/h) |
| 65 mph (104.61 km/h) | 68.61 mph (110.41 km/h) |
| 70 mph (112.65 km/h) | 73.88 mph (118.9 km/h) |
| 75 mph (120.7 km/h) | 79.16 mph (127.4 km/h) |
| 80 mph (128.75 km/h) | 84.44 mph (135.89 km/h) |
| 85 mph (136.79 km/h) | 89.72 mph (144.38 km/h) |
| 90 mph (144.84 km/h) | 94.99 mph (152.88 km/h) |
| 95 mph (152.89 km/h) | 100.27 mph (161.37 km/h) |
| 100 mph (160.93 km/h) | 105.55 mph (169.86 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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