Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-18 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.04 (737.7) | 29.57 (751.2) | 0.53 (13.5) 1.8% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 91.24 (2317.55) | 92.91 (2359.96) | 1.67 (42.41) 1.8% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 5.79 (147) | 0.27 (6.75) 4.8% |
| Revolutions per mile (km) | 694.42 (431.49) | 681.94 (423.73) | -12.48 (-7.75) -1.8% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.78 km/h) |
| 25 mph (40.23 km/h) | 25.46 mph (40.97 km/h) |
| 30 mph (48.28 km/h) | 30.55 mph (49.16 km/h) |
| 35 mph (56.33 km/h) | 35.64 mph (57.36 km/h) |
| 40 mph (64.37 km/h) | 40.73 mph (65.55 km/h) |
| 45 mph (72.42 km/h) | 45.82 mph (73.75 km/h) |
| 50 mph (80.47 km/h) | 50.92 mph (81.94 km/h) |
| 55 mph (88.51 km/h) | 56.01 mph (90.13 km/h) |
| 60 mph (96.56 km/h) | 61.1 mph (98.33 km/h) |
| 65 mph (104.61 km/h) | 66.19 mph (106.52 km/h) |
| 70 mph (112.65 km/h) | 71.28 mph (114.72 km/h) |
| 75 mph (120.7 km/h) | 76.37 mph (122.91 km/h) |
| 80 mph (128.75 km/h) | 81.46 mph (131.1 km/h) |
| 85 mph (136.79 km/h) | 86.56 mph (139.3 km/h) |
| 90 mph (144.84 km/h) | 91.65 mph (147.49 km/h) |
| 95 mph (152.89 km/h) | 96.74 mph (155.69 km/h) |
| 100 mph (160.93 km/h) | 101.83 mph (163.88 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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