Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-17 | 245/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.18 (690.3) | 30.5 (774.8) | 3.33 (84.5) 12.2% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 85.38 (2168.64) | 95.83 (2434.11) | 10.45 (265.46) 12.2% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 6.75 (171.5) | 1.66 (42.25) 32.7% |
| Revolutions per mile (km) | 742.1 (461.12) | 661.16 (410.83) | -80.93 (-50.29) -10.9% |
245/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.45 mph (36.13 km/h) |
| 25 mph (40.23 km/h) | 28.06 mph (45.16 km/h) |
| 30 mph (48.28 km/h) | 33.67 mph (54.19 km/h) |
| 35 mph (56.33 km/h) | 39.28 mph (63.22 km/h) |
| 40 mph (64.37 km/h) | 44.9 mph (72.25 km/h) |
| 45 mph (72.42 km/h) | 50.51 mph (81.29 km/h) |
| 50 mph (80.47 km/h) | 56.12 mph (90.32 km/h) |
| 55 mph (88.51 km/h) | 61.73 mph (99.35 km/h) |
| 60 mph (96.56 km/h) | 67.34 mph (108.38 km/h) |
| 65 mph (104.61 km/h) | 72.96 mph (117.41 km/h) |
| 70 mph (112.65 km/h) | 78.57 mph (126.44 km/h) |
| 75 mph (120.7 km/h) | 84.18 mph (135.48 km/h) |
| 80 mph (128.75 km/h) | 89.79 mph (144.51 km/h) |
| 85 mph (136.79 km/h) | 95.4 mph (153.54 km/h) |
| 90 mph (144.84 km/h) | 101.02 mph (162.57 km/h) |
| 95 mph (152.89 km/h) | 106.63 mph (171.6 km/h) |
| 100 mph (160.93 km/h) | 112.24 mph (180.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1683 | 1955 | 2105 | 2198 | 2298 | 2370 | 2449 | 2542 | 2671 | 2799 | 2943 | 3057 | 3265 | 3494 | 3673 | 3787 | 3852 | 4088 | 4418 | 5134 |
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