Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-17 | 245/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.06 (788.8) | 31.47 (799.3) | 0.41 (10.5) 1.3% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 97.56 (2478.09) | 98.86 (2511.08) | 1.3 (32.99) 1.3% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 7.23 (183.75) | 0.21 (5.25) 2.9% |
| Revolutions per mile (km) | 649.43 (403.54) | 640.9 (398.24) | -8.53 (-5.3) -1.3% |
245/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.27 mph (32.62 km/h) |
| 25 mph (40.23 km/h) | 25.33 mph (40.77 km/h) |
| 30 mph (48.28 km/h) | 30.4 mph (48.92 km/h) |
| 35 mph (56.33 km/h) | 35.47 mph (57.08 km/h) |
| 40 mph (64.37 km/h) | 40.53 mph (65.23 km/h) |
| 45 mph (72.42 km/h) | 45.6 mph (73.38 km/h) |
| 50 mph (80.47 km/h) | 50.67 mph (81.54 km/h) |
| 55 mph (88.51 km/h) | 55.73 mph (89.69 km/h) |
| 60 mph (96.56 km/h) | 60.8 mph (97.85 km/h) |
| 65 mph (104.61 km/h) | 65.87 mph (106 km/h) |
| 70 mph (112.65 km/h) | 70.93 mph (114.15 km/h) |
| 75 mph (120.7 km/h) | 76 mph (122.31 km/h) |
| 80 mph (128.75 km/h) | 81.06 mph (130.46 km/h) |
| 85 mph (136.79 km/h) | 86.13 mph (138.62 km/h) |
| 90 mph (144.84 km/h) | 91.2 mph (146.77 km/h) |
| 95 mph (152.89 km/h) | 96.26 mph (154.92 km/h) |
| 100 mph (160.93 km/h) | 101.33 mph (163.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2040 | 2131 | 2228 | 2297 | 2374 | 2464 | 2589 | 2714 | 2852 | 2963 | 3165 | 3387 | 3560 | 3671 | 3734 | 3963 | 4282 | 4976 |
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