Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/25-20 | 285/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.81 (655.5) | 31.46 (799.2) | 5.66 (143.7) 21.9% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 81.08 (2059.31) | 98.85 (2510.76) | 17.77 (451.45) 21.9% |
| Sidewall Height inches (mm) | 2.9 (73.75) | 6.73 (171) | 3.83 (97.25) 131.9% |
| Revolutions per mile (km) | 781.5 (485.6) | 640.98 (398.28) | -140.52 (-87.31) -18% |
285/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.38 mph (39.24 km/h) |
| 25 mph (40.23 km/h) | 30.48 mph (49.05 km/h) |
| 30 mph (48.28 km/h) | 36.58 mph (58.86 km/h) |
| 35 mph (56.33 km/h) | 42.67 mph (68.68 km/h) |
| 40 mph (64.37 km/h) | 48.77 mph (78.49 km/h) |
| 45 mph (72.42 km/h) | 54.86 mph (88.3 km/h) |
| 50 mph (80.47 km/h) | 60.96 mph (98.11 km/h) |
| 55 mph (88.51 km/h) | 67.06 mph (107.92 km/h) |
| 60 mph (96.56 km/h) | 73.15 mph (117.73 km/h) |
| 65 mph (104.61 km/h) | 79.25 mph (127.54 km/h) |
| 70 mph (112.65 km/h) | 85.35 mph (137.35 km/h) |
| 75 mph (120.7 km/h) | 91.44 mph (147.16 km/h) |
| 80 mph (128.75 km/h) | 97.54 mph (156.97 km/h) |
| 85 mph (136.79 km/h) | 103.63 mph (166.78 km/h) |
| 90 mph (144.84 km/h) | 109.73 mph (176.59 km/h) |
| 95 mph (152.89 km/h) | 115.83 mph (186.4 km/h) |
| 100 mph (160.93 km/h) | 121.92 mph (196.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2041 | 2131 | 2228 | 2298 | 2374 | 2464 | 2589 | 2714 | 2853 | 2964 | 3165 | 3387 | 3561 | 3672 | 3734 | 3963 | 4283 | 4977 |
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