Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/65-18 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.56 (801.7) | 32.71 (830.8) | 1.15 (29.1) 3.6% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 99.16 (2518.61) | 102.76 (2610.04) | 3.6 (91.42) 3.6% |
| Sidewall Height inches (mm) | 6.78 (172.25) | 7.85 (199.5) | 1.07 (27.25) 15.8% |
| Revolutions per mile (km) | 638.98 (397.04) | 616.6 (383.14) | -22.38 (-13.91) -3.5% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.73 mph (33.36 km/h) |
| 25 mph (40.23 km/h) | 25.91 mph (41.69 km/h) |
| 30 mph (48.28 km/h) | 31.09 mph (50.03 km/h) |
| 35 mph (56.33 km/h) | 36.27 mph (58.37 km/h) |
| 40 mph (64.37 km/h) | 41.45 mph (66.71 km/h) |
| 45 mph (72.42 km/h) | 46.63 mph (75.05 km/h) |
| 50 mph (80.47 km/h) | 51.81 mph (83.39 km/h) |
| 55 mph (88.51 km/h) | 57 mph (91.73 km/h) |
| 60 mph (96.56 km/h) | 62.18 mph (100.07 km/h) |
| 65 mph (104.61 km/h) | 67.36 mph (108.4 km/h) |
| 70 mph (112.65 km/h) | 72.54 mph (116.74 km/h) |
| 75 mph (120.7 km/h) | 77.72 mph (125.08 km/h) |
| 80 mph (128.75 km/h) | 82.9 mph (133.42 km/h) |
| 85 mph (136.79 km/h) | 88.09 mph (141.76 km/h) |
| 90 mph (144.84 km/h) | 93.27 mph (150.1 km/h) |
| 95 mph (152.89 km/h) | 98.45 mph (158.44 km/h) |
| 100 mph (160.93 km/h) | 103.63 mph (166.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1569 | 1823 | 1963 | 2050 | 2143 | 2210 | 2284 | 2370 | 2491 | 2611 | 2744 | 2851 | 3045 | 3258 | 3425 | 3532 | 3592 | 3813 | 4120 | 4788 |
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