Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/11.5-15 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.01 (813.16) | 32.71 (830.8) | 0.69 (17.64) 2.2% |
| Width inches (mm) | 11.5 (292) | 11.22 (285) | -0.28 (-7) -2.4% |
| Circum. inches (mm) | 100.58 (2554.62) | 102.76 (2610.04) | 2.18 (55.42) 2.2% |
| Sidewall Height inches (mm) | 8.51 (216.08) | 7.85 (199.5) | -0.65 (-16.58) -7.7% |
| Revolutions per mile (km) | 629.97 (391.45) | 616.6 (383.14) | -13.38 (-8.31) -2.1% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.43 mph (32.89 km/h) |
| 25 mph (40.23 km/h) | 25.54 mph (41.11 km/h) |
| 30 mph (48.28 km/h) | 30.65 mph (49.33 km/h) |
| 35 mph (56.33 km/h) | 35.76 mph (57.55 km/h) |
| 40 mph (64.37 km/h) | 40.87 mph (65.77 km/h) |
| 45 mph (72.42 km/h) | 45.98 mph (73.99 km/h) |
| 50 mph (80.47 km/h) | 51.08 mph (82.21 km/h) |
| 55 mph (88.51 km/h) | 56.19 mph (90.43 km/h) |
| 60 mph (96.56 km/h) | 61.3 mph (98.66 km/h) |
| 65 mph (104.61 km/h) | 66.41 mph (106.88 km/h) |
| 70 mph (112.65 km/h) | 71.52 mph (115.1 km/h) |
| 75 mph (120.7 km/h) | 76.63 mph (123.32 km/h) |
| 80 mph (128.75 km/h) | 81.74 mph (131.54 km/h) |
| 85 mph (136.79 km/h) | 86.84 mph (139.76 km/h) |
| 90 mph (144.84 km/h) | 91.95 mph (147.98 km/h) |
| 95 mph (152.89 km/h) | 97.06 mph (156.2 km/h) |
| 100 mph (160.93 km/h) | 102.17 mph (164.43 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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