Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/55-18 | 225/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.61 (726.7) | 28.63 (727.2) | 0.02 (0.5) 0.1% |
| Width inches (mm) | 9.65 (245) | 8.86 (225) | -0.79 (-20) -8.2% |
| Circum. inches (mm) | 89.88 (2283) | 89.94 (2284.57) | 0.06 (1.57) 0.1% |
| Sidewall Height inches (mm) | 5.31 (134.75) | 5.31 (135) | 0.01 (0.25) 0.2% |
| Revolutions per mile (km) | 704.93 (438.02) | 704.44 (437.72) | -0.48 (-0.3) -0.1% |
225/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.01 mph (32.21 km/h) |
| 25 mph (40.23 km/h) | 25.02 mph (40.26 km/h) |
| 30 mph (48.28 km/h) | 30.02 mph (48.31 km/h) |
| 35 mph (56.33 km/h) | 35.02 mph (56.37 km/h) |
| 40 mph (64.37 km/h) | 40.03 mph (64.42 km/h) |
| 45 mph (72.42 km/h) | 45.03 mph (72.47 km/h) |
| 50 mph (80.47 km/h) | 50.03 mph (80.52 km/h) |
| 55 mph (88.51 km/h) | 55.04 mph (88.57 km/h) |
| 60 mph (96.56 km/h) | 60.04 mph (96.63 km/h) |
| 65 mph (104.61 km/h) | 65.04 mph (104.68 km/h) |
| 70 mph (112.65 km/h) | 70.05 mph (112.73 km/h) |
| 75 mph (120.7 km/h) | 75.05 mph (120.78 km/h) |
| 80 mph (128.75 km/h) | 80.06 mph (128.84 km/h) |
| 85 mph (136.79 km/h) | 85.06 mph (136.89 km/h) |
| 90 mph (144.84 km/h) | 90.06 mph (144.94 km/h) |
| 95 mph (152.89 km/h) | 95.07 mph (152.99 km/h) |
| 100 mph (160.93 km/h) | 100.07 mph (161.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1793 | 2083 | 2243 | 2342 | 2449 | 2525 | 2609 | 2708 | 2845 | 2983 | 3135 | 3257 | 3479 | 3723 | 3913 | 4035 | 4104 | 4356 | 4707 | 5470 |
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