Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.85 (732.8) | 32.71 (830.8) | 3.86 (98) 13.4% |
| Width inches (mm) | 8.46 (215) | 11.22 (285) | 2.76 (70) 32.6% |
| Circum. inches (mm) | 90.64 (2302.16) | 102.76 (2610.04) | 12.12 (307.88) 13.4% |
| Sidewall Height inches (mm) | 5.93 (150.5) | 7.85 (199.5) | 1.93 (49) 32.6% |
| Revolutions per mile (km) | 699.06 (434.37) | 616.6 (383.14) | -82.46 (-51.24) -11.8% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.67 mph (36.49 km/h) |
| 25 mph (40.23 km/h) | 28.34 mph (45.61 km/h) |
| 30 mph (48.28 km/h) | 34.01 mph (54.74 km/h) |
| 35 mph (56.33 km/h) | 39.68 mph (63.86 km/h) |
| 40 mph (64.37 km/h) | 45.35 mph (72.98 km/h) |
| 45 mph (72.42 km/h) | 51.02 mph (82.11 km/h) |
| 50 mph (80.47 km/h) | 56.69 mph (91.23 km/h) |
| 55 mph (88.51 km/h) | 62.36 mph (100.35 km/h) |
| 60 mph (96.56 km/h) | 68.02 mph (109.47 km/h) |
| 65 mph (104.61 km/h) | 73.69 mph (118.6 km/h) |
| 70 mph (112.65 km/h) | 79.36 mph (127.72 km/h) |
| 75 mph (120.7 km/h) | 85.03 mph (136.84 km/h) |
| 80 mph (128.75 km/h) | 90.7 mph (145.97 km/h) |
| 85 mph (136.79 km/h) | 96.37 mph (155.09 km/h) |
| 90 mph (144.84 km/h) | 102.04 mph (164.21 km/h) |
| 95 mph (152.89 km/h) | 107.7 mph (173.33 km/h) |
| 100 mph (160.93 km/h) | 113.37 mph (182.46 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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