Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-15 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.57 (675) | 29.57 (751.2) | 3 (76.2) 11.3% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 83.49 (2120.58) | 92.91 (2359.96) | 9.42 (239.39) 11.3% |
| Sidewall Height inches (mm) | 5.79 (147) | 5.79 (147) | 0 (0) 0% |
| Revolutions per mile (km) | 758.92 (471.57) | 681.94 (423.73) | -76.98 (-47.83) -10.1% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.26 mph (35.82 km/h) |
| 25 mph (40.23 km/h) | 27.82 mph (44.78 km/h) |
| 30 mph (48.28 km/h) | 33.39 mph (53.73 km/h) |
| 35 mph (56.33 km/h) | 38.95 mph (62.69 km/h) |
| 40 mph (64.37 km/h) | 44.52 mph (71.64 km/h) |
| 45 mph (72.42 km/h) | 50.08 mph (80.6 km/h) |
| 50 mph (80.47 km/h) | 55.64 mph (89.55 km/h) |
| 55 mph (88.51 km/h) | 61.21 mph (98.51 km/h) |
| 60 mph (96.56 km/h) | 66.77 mph (107.46 km/h) |
| 65 mph (104.61 km/h) | 72.34 mph (116.42 km/h) |
| 70 mph (112.65 km/h) | 77.9 mph (125.37 km/h) |
| 75 mph (120.7 km/h) | 83.47 mph (134.33 km/h) |
| 80 mph (128.75 km/h) | 89.03 mph (143.28 km/h) |
| 85 mph (136.79 km/h) | 94.6 mph (152.24 km/h) |
| 90 mph (144.84 km/h) | 100.16 mph (161.19 km/h) |
| 95 mph (152.89 km/h) | 105.72 mph (170.15 km/h) |
| 100 mph (160.93 km/h) | 111.29 mph (179.1 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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