Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/65-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.59 (802.3) | 32.71 (830.8) | 1.12 (28.5) 3.6% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 99.23 (2520.5) | 102.76 (2610.04) | 3.53 (89.54) 3.6% |
| Sidewall Height inches (mm) | 7.29 (185.25) | 7.85 (199.5) | 0.56 (14.25) 7.7% |
| Revolutions per mile (km) | 638.5 (396.75) | 616.6 (383.14) | -21.9 (-13.61) -3.4% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.71 mph (33.33 km/h) |
| 25 mph (40.23 km/h) | 25.89 mph (41.66 km/h) |
| 30 mph (48.28 km/h) | 31.07 mph (50 km/h) |
| 35 mph (56.33 km/h) | 36.24 mph (58.33 km/h) |
| 40 mph (64.37 km/h) | 41.42 mph (66.66 km/h) |
| 45 mph (72.42 km/h) | 46.6 mph (74.99 km/h) |
| 50 mph (80.47 km/h) | 51.78 mph (83.33 km/h) |
| 55 mph (88.51 km/h) | 56.95 mph (91.66 km/h) |
| 60 mph (96.56 km/h) | 62.13 mph (99.99 km/h) |
| 65 mph (104.61 km/h) | 67.31 mph (108.32 km/h) |
| 70 mph (112.65 km/h) | 72.49 mph (116.66 km/h) |
| 75 mph (120.7 km/h) | 77.66 mph (124.99 km/h) |
| 80 mph (128.75 km/h) | 82.84 mph (133.32 km/h) |
| 85 mph (136.79 km/h) | 88.02 mph (141.65 km/h) |
| 90 mph (144.84 km/h) | 93.2 mph (149.99 km/h) |
| 95 mph (152.89 km/h) | 98.37 mph (158.32 km/h) |
| 100 mph (160.93 km/h) | 103.55 mph (166.65 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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