Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/40-22 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.24 (818.8) | 32.71 (830.8) | 0.47 (12) 1.5% |
| Width inches (mm) | 12.8 (325) | 11.22 (285) | -1.57 (-40) -12.3% |
| Circum. inches (mm) | 101.27 (2572.34) | 102.76 (2610.04) | 1.48 (37.7) 1.5% |
| Sidewall Height inches (mm) | 5.12 (130) | 7.85 (199.5) | 2.74 (69.5) 53.5% |
| Revolutions per mile (km) | 625.64 (388.75) | 616.6 (383.14) | -9.04 (-5.62) -1.4% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.29 mph (32.66 km/h) |
| 25 mph (40.23 km/h) | 25.37 mph (40.82 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (48.99 km/h) |
| 35 mph (56.33 km/h) | 35.51 mph (57.15 km/h) |
| 40 mph (64.37 km/h) | 40.59 mph (65.32 km/h) |
| 45 mph (72.42 km/h) | 45.66 mph (73.48 km/h) |
| 50 mph (80.47 km/h) | 50.73 mph (81.65 km/h) |
| 55 mph (88.51 km/h) | 55.81 mph (89.81 km/h) |
| 60 mph (96.56 km/h) | 60.88 mph (97.98 km/h) |
| 65 mph (104.61 km/h) | 65.95 mph (106.14 km/h) |
| 70 mph (112.65 km/h) | 71.03 mph (114.31 km/h) |
| 75 mph (120.7 km/h) | 76.1 mph (122.47 km/h) |
| 80 mph (128.75 km/h) | 81.17 mph (130.63 km/h) |
| 85 mph (136.79 km/h) | 86.25 mph (138.8 km/h) |
| 90 mph (144.84 km/h) | 91.32 mph (146.96 km/h) |
| 95 mph (152.89 km/h) | 96.39 mph (155.13 km/h) |
| 100 mph (160.93 km/h) | 101.47 mph (163.29 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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