Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-18 | 225/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.97 (659.7) | 26.74 (679.3) | 0.77 (19.6) 3% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 81.59 (2072.51) | 84.02 (2134.08) | 2.42 (61.58) 3% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.87 (123.75) | 0.89 (22.5) 22.2% |
| Revolutions per mile (km) | 776.52 (482.51) | 754.11 (468.58) | -22.41 (-13.92) -2.9% |
225/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.59 mph (33.14 km/h) |
| 25 mph (40.23 km/h) | 25.74 mph (41.43 km/h) |
| 30 mph (48.28 km/h) | 30.89 mph (49.71 km/h) |
| 35 mph (56.33 km/h) | 36.04 mph (58 km/h) |
| 40 mph (64.37 km/h) | 41.19 mph (66.29 km/h) |
| 45 mph (72.42 km/h) | 46.34 mph (74.57 km/h) |
| 50 mph (80.47 km/h) | 51.49 mph (82.86 km/h) |
| 55 mph (88.51 km/h) | 56.63 mph (91.14 km/h) |
| 60 mph (96.56 km/h) | 61.78 mph (99.43 km/h) |
| 65 mph (104.61 km/h) | 66.93 mph (107.72 km/h) |
| 70 mph (112.65 km/h) | 72.08 mph (116 km/h) |
| 75 mph (120.7 km/h) | 77.23 mph (124.29 km/h) |
| 80 mph (128.75 km/h) | 82.38 mph (132.57 km/h) |
| 85 mph (136.79 km/h) | 87.53 mph (140.86 km/h) |
| 90 mph (144.84 km/h) | 92.67 mph (149.14 km/h) |
| 95 mph (152.89 km/h) | 97.82 mph (157.43 km/h) |
| 100 mph (160.93 km/h) | 102.97 mph (165.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | 2229 | 2401 | 2507 | 2621 | 2703 | 2793 | 2899 | 3046 | 3193 | 3356 | 3487 | 3724 | 3985 | 4189 | 4320 | 4393 | 4663 | 5039 | 5855 |
Better Fuel Economy Factory Ratios Increased Power
