Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/60-18 | 225/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.63 (727.2) | 29.52 (749.7) | 0.89 (22.5) 3.1% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 89.94 (2284.57) | 92.73 (2355.25) | 2.78 (70.69) 3.1% |
| Sidewall Height inches (mm) | 5.31 (135) | 5.76 (146.25) | 0.44 (11.25) 8.3% |
| Revolutions per mile (km) | 704.44 (437.72) | 683.3 (424.58) | -21.14 (-13.14) -3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.18 km/h) |
| 25 mph (40.23 km/h) | 25.77 mph (41.48 km/h) |
| 30 mph (48.28 km/h) | 30.93 mph (49.77 km/h) |
| 35 mph (56.33 km/h) | 36.08 mph (58.07 km/h) |
| 40 mph (64.37 km/h) | 41.24 mph (66.37 km/h) |
| 45 mph (72.42 km/h) | 46.39 mph (74.66 km/h) |
| 50 mph (80.47 km/h) | 51.55 mph (82.96 km/h) |
| 55 mph (88.51 km/h) | 56.7 mph (91.25 km/h) |
| 60 mph (96.56 km/h) | 61.86 mph (99.55 km/h) |
| 65 mph (104.61 km/h) | 67.01 mph (107.84 km/h) |
| 70 mph (112.65 km/h) | 72.17 mph (116.14 km/h) |
| 75 mph (120.7 km/h) | 77.32 mph (124.44 km/h) |
| 80 mph (128.75 km/h) | 82.48 mph (132.73 km/h) |
| 85 mph (136.79 km/h) | 87.63 mph (141.03 km/h) |
| 90 mph (144.84 km/h) | 92.78 mph (149.32 km/h) |
| 95 mph (152.89 km/h) | 97.94 mph (157.62 km/h) |
| 100 mph (160.93 km/h) | 103.09 mph (165.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1739 | 2020 | 2175 | 2272 | 2375 | 2449 | 2531 | 2627 | 2760 | 2893 | 3041 | 3160 | 3374 | 3611 | 3796 | 3914 | 3981 | 4225 | 4565 | 5305 |
Better Fuel Economy Factory Ratios Increased Power
