Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/55-18 | 225/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.31 (693.7) | 26.74 (679.3) | -0.57 (-14.4) -2.1% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 85.8 (2179.32) | 84.02 (2134.08) | -1.78 (-45.24) -2.1% |
| Sidewall Height inches (mm) | 4.66 (118.25) | 4.87 (123.75) | 0.22 (5.5) 4.7% |
| Revolutions per mile (km) | 738.46 (458.86) | 754.11 (468.58) | 15.65 (9.73) 2.1% |
225/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.52 km/h) |
| 25 mph (40.23 km/h) | 24.48 mph (39.4 km/h) |
| 30 mph (48.28 km/h) | 29.38 mph (47.28 km/h) |
| 35 mph (56.33 km/h) | 34.27 mph (55.16 km/h) |
| 40 mph (64.37 km/h) | 39.17 mph (63.04 km/h) |
| 45 mph (72.42 km/h) | 44.07 mph (70.92 km/h) |
| 50 mph (80.47 km/h) | 48.96 mph (78.8 km/h) |
| 55 mph (88.51 km/h) | 53.86 mph (86.68 km/h) |
| 60 mph (96.56 km/h) | 58.75 mph (94.56 km/h) |
| 65 mph (104.61 km/h) | 63.65 mph (102.44 km/h) |
| 70 mph (112.65 km/h) | 68.55 mph (110.32 km/h) |
| 75 mph (120.7 km/h) | 73.44 mph (118.2 km/h) |
| 80 mph (128.75 km/h) | 78.34 mph (126.08 km/h) |
| 85 mph (136.79 km/h) | 83.24 mph (133.95 km/h) |
| 90 mph (144.84 km/h) | 88.13 mph (141.83 km/h) |
| 95 mph (152.89 km/h) | 93.03 mph (149.71 km/h) |
| 100 mph (160.93 km/h) | 97.92 mph (157.59 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 |
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