Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 35/12-18 | 285/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.05 (890.3) | 33.71 (856.2) | -1.34 (-34.1) -3.8% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 110.12 (2796.96) | 105.9 (2689.83) | -4.22 (-107.13) -3.8% |
| Sidewall Height inches (mm) | 8.53 (216.55) | 7.85 (199.5) | -0.67 (-17.05) -7.9% |
| Revolutions per mile (km) | 575.39 (357.53) | 598.31 (371.77) | 22.92 (14.24) 4% |
285/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.23 mph (30.95 km/h) |
| 25 mph (40.23 km/h) | 24.04 mph (38.69 km/h) |
| 30 mph (48.28 km/h) | 28.85 mph (46.43 km/h) |
| 35 mph (56.33 km/h) | 33.66 mph (54.17 km/h) |
| 40 mph (64.37 km/h) | 38.47 mph (61.91 km/h) |
| 45 mph (72.42 km/h) | 43.28 mph (69.65 km/h) |
| 50 mph (80.47 km/h) | 48.08 mph (77.39 km/h) |
| 55 mph (88.51 km/h) | 52.89 mph (85.12 km/h) |
| 60 mph (96.56 km/h) | 57.7 mph (92.86 km/h) |
| 65 mph (104.61 km/h) | 62.51 mph (100.6 km/h) |
| 70 mph (112.65 km/h) | 67.32 mph (108.34 km/h) |
| 75 mph (120.7 km/h) | 72.13 mph (116.08 km/h) |
| 80 mph (128.75 km/h) | 76.94 mph (123.82 km/h) |
| 85 mph (136.79 km/h) | 81.74 mph (131.56 km/h) |
| 90 mph (144.84 km/h) | 86.55 mph (139.29 km/h) |
| 95 mph (152.89 km/h) | 91.36 mph (147.03 km/h) |
| 100 mph (160.93 km/h) | 96.17 mph (154.77 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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