Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-17 | 245/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.71 (830.8) | 27.61 (701.3) | -5.1 (-129.5) -15.6% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 102.76 (2610.04) | 86.74 (2203.2) | -16.02 (-406.84) -15.6% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 5.31 (134.75) | -2.55 (-64.75) -32.5% |
| Revolutions per mile (km) | 616.6 (383.14) | 730.46 (453.88) | 113.86 (70.75) 18.5% |
245/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.88 mph (27.17 km/h) |
| 25 mph (40.23 km/h) | 21.1 mph (33.96 km/h) |
| 30 mph (48.28 km/h) | 25.32 mph (40.75 km/h) |
| 35 mph (56.33 km/h) | 29.54 mph (47.55 km/h) |
| 40 mph (64.37 km/h) | 33.77 mph (54.34 km/h) |
| 45 mph (72.42 km/h) | 37.99 mph (61.13 km/h) |
| 50 mph (80.47 km/h) | 42.21 mph (67.92 km/h) |
| 55 mph (88.51 km/h) | 46.43 mph (74.72 km/h) |
| 60 mph (96.56 km/h) | 50.65 mph (81.51 km/h) |
| 65 mph (104.61 km/h) | 54.87 mph (88.3 km/h) |
| 70 mph (112.65 km/h) | 59.09 mph (95.09 km/h) |
| 75 mph (120.7 km/h) | 63.31 mph (101.89 km/h) |
| 80 mph (128.75 km/h) | 67.53 mph (108.68 km/h) |
| 85 mph (136.79 km/h) | 71.75 mph (115.47 km/h) |
| 90 mph (144.84 km/h) | 75.97 mph (122.26 km/h) |
| 95 mph (152.89 km/h) | 80.19 mph (129.06 km/h) |
| 100 mph (160.93 km/h) | 84.41 mph (135.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1859 | 2159 | 2326 | 2428 | 2539 | 2618 | 2705 | 2808 | 2950 | 3093 | 3251 | 3378 | 3607 | 3860 | 4058 | 4184 | 4256 | 4517 | 4881 | 5672 |
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