Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/60-18 | 285/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.94 (811.2) | 34.83 (884.7) | 2.89 (73.5) 9.1% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 100.33 (2548.46) | 109.42 (2779.37) | 9.09 (230.91) 9.1% |
| Sidewall Height inches (mm) | 6.97 (177) | 8.42 (213.75) | 1.45 (36.75) 20.8% |
| Revolutions per mile (km) | 631.5 (392.39) | 579.03 (359.79) | -52.46 (-32.6) -8.3% |
285/75-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.81 mph (35.1 km/h) |
| 25 mph (40.23 km/h) | 27.27 mph (43.88 km/h) |
| 30 mph (48.28 km/h) | 32.72 mph (52.65 km/h) |
| 35 mph (56.33 km/h) | 38.17 mph (61.43 km/h) |
| 40 mph (64.37 km/h) | 43.62 mph (70.21 km/h) |
| 45 mph (72.42 km/h) | 49.08 mph (78.98 km/h) |
| 50 mph (80.47 km/h) | 54.53 mph (87.76 km/h) |
| 55 mph (88.51 km/h) | 59.98 mph (96.53 km/h) |
| 60 mph (96.56 km/h) | 65.44 mph (105.31 km/h) |
| 65 mph (104.61 km/h) | 70.89 mph (114.09 km/h) |
| 70 mph (112.65 km/h) | 76.34 mph (122.86 km/h) |
| 75 mph (120.7 km/h) | 81.8 mph (131.64 km/h) |
| 80 mph (128.75 km/h) | 87.25 mph (140.41 km/h) |
| 85 mph (136.79 km/h) | 92.7 mph (149.19 km/h) |
| 90 mph (144.84 km/h) | 98.15 mph (157.96 km/h) |
| 95 mph (152.89 km/h) | 103.61 mph (166.74 km/h) |
| 100 mph (160.93 km/h) | 109.06 mph (175.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1474 | 1712 | 1843 | 1925 | 2013 | 2075 | 2144 | 2226 | 2339 | 2452 | 2577 | 2677 | 2859 | 3060 | 3217 | 3317 | 3373 | 3580 | 3869 | 4496 |
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