Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 285/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 33.71 (856.2) | 3.19 (81) 10.4% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 95.88 (2435.36) | 105.9 (2689.83) | 10.02 (254.47) 10.4% |
| Sidewall Height inches (mm) | 6.26 (159) | 7.85 (199.5) | 1.59 (40.5) 25.5% |
| Revolutions per mile (km) | 660.82 (410.62) | 598.31 (371.77) | -62.52 (-38.85) -9.5% |
285/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.09 mph (35.55 km/h) |
| 25 mph (40.23 km/h) | 27.61 mph (44.44 km/h) |
| 30 mph (48.28 km/h) | 33.13 mph (53.33 km/h) |
| 35 mph (56.33 km/h) | 38.66 mph (62.21 km/h) |
| 40 mph (64.37 km/h) | 44.18 mph (71.1 km/h) |
| 45 mph (72.42 km/h) | 49.7 mph (79.99 km/h) |
| 50 mph (80.47 km/h) | 55.22 mph (88.88 km/h) |
| 55 mph (88.51 km/h) | 60.75 mph (97.76 km/h) |
| 60 mph (96.56 km/h) | 66.27 mph (106.65 km/h) |
| 65 mph (104.61 km/h) | 71.79 mph (115.54 km/h) |
| 70 mph (112.65 km/h) | 77.31 mph (124.43 km/h) |
| 75 mph (120.7 km/h) | 82.84 mph (133.31 km/h) |
| 80 mph (128.75 km/h) | 88.36 mph (142.2 km/h) |
| 85 mph (136.79 km/h) | 93.88 mph (151.09 km/h) |
| 90 mph (144.84 km/h) | 99.4 mph (159.98 km/h) |
| 95 mph (152.89 km/h) | 104.93 mph (168.86 km/h) |
| 100 mph (160.93 km/h) | 110.45 mph (177.75 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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