Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/65-18 | 245/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.54 (775.7) | 30.5 (774.8) | -0.04 (-0.9) -0.1% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 95.94 (2436.93) | 95.83 (2434.11) | -0.11 (-2.83) -0.1% |
| Sidewall Height inches (mm) | 6.27 (159.25) | 6.75 (171.5) | 0.48 (12.25) 7.7% |
| Revolutions per mile (km) | 660.4 (410.35) | 661.16 (410.83) | 0.77 (0.48) 0.1% |
245/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.98 mph (32.15 km/h) |
| 25 mph (40.23 km/h) | 24.97 mph (40.19 km/h) |
| 30 mph (48.28 km/h) | 29.97 mph (48.22 km/h) |
| 35 mph (56.33 km/h) | 34.96 mph (56.26 km/h) |
| 40 mph (64.37 km/h) | 39.95 mph (64.3 km/h) |
| 45 mph (72.42 km/h) | 44.95 mph (72.34 km/h) |
| 50 mph (80.47 km/h) | 49.94 mph (80.37 km/h) |
| 55 mph (88.51 km/h) | 54.94 mph (88.41 km/h) |
| 60 mph (96.56 km/h) | 59.93 mph (96.45 km/h) |
| 65 mph (104.61 km/h) | 64.92 mph (104.49 km/h) |
| 70 mph (112.65 km/h) | 69.92 mph (112.52 km/h) |
| 75 mph (120.7 km/h) | 74.91 mph (120.56 km/h) |
| 80 mph (128.75 km/h) | 79.91 mph (128.6 km/h) |
| 85 mph (136.79 km/h) | 84.9 mph (136.64 km/h) |
| 90 mph (144.84 km/h) | 89.9 mph (144.67 km/h) |
| 95 mph (152.89 km/h) | 94.89 mph (152.71 km/h) |
| 100 mph (160.93 km/h) | 99.88 mph (160.75 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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