Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-17 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.57 (725.8) | 29.57 (751.2) | 1 (25.4) 3.5% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 89.77 (2280.17) | 92.91 (2359.96) | 3.14 (79.8) 3.5% |
| Sidewall Height inches (mm) | 5.79 (147) | 5.79 (147) | 0 (0) 0% |
| Revolutions per mile (km) | 705.8 (438.56) | 681.94 (423.73) | -23.86 (-14.83) -3.4% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.7 mph (33.31 km/h) |
| 25 mph (40.23 km/h) | 25.87 mph (41.64 km/h) |
| 30 mph (48.28 km/h) | 31.05 mph (49.97 km/h) |
| 35 mph (56.33 km/h) | 36.22 mph (58.3 km/h) |
| 40 mph (64.37 km/h) | 41.4 mph (66.63 km/h) |
| 45 mph (72.42 km/h) | 46.57 mph (74.96 km/h) |
| 50 mph (80.47 km/h) | 51.75 mph (83.28 km/h) |
| 55 mph (88.51 km/h) | 56.92 mph (91.61 km/h) |
| 60 mph (96.56 km/h) | 62.1 mph (99.94 km/h) |
| 65 mph (104.61 km/h) | 67.27 mph (108.27 km/h) |
| 70 mph (112.65 km/h) | 72.45 mph (116.6 km/h) |
| 75 mph (120.7 km/h) | 77.62 mph (124.93 km/h) |
| 80 mph (128.75 km/h) | 82.8 mph (133.25 km/h) |
| 85 mph (136.79 km/h) | 87.97 mph (141.58 km/h) |
| 90 mph (144.84 km/h) | 93.15 mph (149.91 km/h) |
| 95 mph (152.89 km/h) | 98.32 mph (158.24 km/h) |
| 100 mph (160.93 km/h) | 103.5 mph (166.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1735 | 2016 | 2171 | 2267 | 2370 | 2444 | 2526 | 2622 | 2754 | 2887 | 3035 | 3153 | 3367 | 3604 | 3788 | 3906 | 3973 | 4217 | 4556 | 5295 |
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