Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/60-18 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.32 (643.2) | 29.57 (751.2) | 4.25 (108) 16.8% |
| Width inches (mm) | 6.1 (155) | 9.65 (245) | 3.54 (90) 58.1% |
| Circum. inches (mm) | 79.55 (2020.67) | 92.91 (2359.96) | 13.36 (339.29) 16.8% |
| Sidewall Height inches (mm) | 3.66 (93) | 5.79 (147) | 2.13 (54) 58.1% |
| Revolutions per mile (km) | 796.44 (494.88) | 681.94 (423.73) | -114.5 (-71.15) -14.4% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.36 mph (37.59 km/h) |
| 25 mph (40.23 km/h) | 29.2 mph (46.99 km/h) |
| 30 mph (48.28 km/h) | 35.04 mph (56.39 km/h) |
| 35 mph (56.33 km/h) | 40.88 mph (65.79 km/h) |
| 40 mph (64.37 km/h) | 46.72 mph (75.18 km/h) |
| 45 mph (72.42 km/h) | 52.56 mph (84.58 km/h) |
| 50 mph (80.47 km/h) | 58.4 mph (93.98 km/h) |
| 55 mph (88.51 km/h) | 64.24 mph (103.38 km/h) |
| 60 mph (96.56 km/h) | 70.07 mph (112.77 km/h) |
| 65 mph (104.61 km/h) | 75.91 mph (122.17 km/h) |
| 70 mph (112.65 km/h) | 81.75 mph (131.57 km/h) |
| 75 mph (120.7 km/h) | 87.59 mph (140.97 km/h) |
| 80 mph (128.75 km/h) | 93.43 mph (150.37 km/h) |
| 85 mph (136.79 km/h) | 99.27 mph (159.76 km/h) |
| 90 mph (144.84 km/h) | 105.11 mph (169.16 km/h) |
| 95 mph (152.89 km/h) | 110.95 mph (178.56 km/h) |
| 100 mph (160.93 km/h) | 116.79 mph (187.96 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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