Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 225/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 26.74 (679.3) | 1.75 (44.5) 7% |
| Width inches (mm) | 5.71 (145) | 8.86 (225) | 3.15 (80) 55.2% |
| Circum. inches (mm) | 78.52 (1994.28) | 84.02 (2134.08) | 5.5 (139.8) 7% |
| Sidewall Height inches (mm) | 4 (101.5) | 4.87 (123.75) | 0.88 (22.25) 21.9% |
| Revolutions per mile (km) | 806.98 (501.43) | 754.11 (468.58) | -52.86 (-32.85) -6.6% |
225/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.4 mph (34.44 km/h) |
| 25 mph (40.23 km/h) | 26.75 mph (43.05 km/h) |
| 30 mph (48.28 km/h) | 32.1 mph (51.66 km/h) |
| 35 mph (56.33 km/h) | 37.45 mph (60.28 km/h) |
| 40 mph (64.37 km/h) | 42.8 mph (68.89 km/h) |
| 45 mph (72.42 km/h) | 48.15 mph (77.5 km/h) |
| 50 mph (80.47 km/h) | 53.51 mph (86.11 km/h) |
| 55 mph (88.51 km/h) | 58.86 mph (94.72 km/h) |
| 60 mph (96.56 km/h) | 64.21 mph (103.33 km/h) |
| 65 mph (104.61 km/h) | 69.56 mph (111.94 km/h) |
| 70 mph (112.65 km/h) | 74.91 mph (120.55 km/h) |
| 75 mph (120.7 km/h) | 80.26 mph (129.16 km/h) |
| 80 mph (128.75 km/h) | 85.61 mph (137.77 km/h) |
| 85 mph (136.79 km/h) | 90.96 mph (146.38 km/h) |
| 90 mph (144.84 km/h) | 96.31 mph (154.99 km/h) |
| 95 mph (152.89 km/h) | 101.66 mph (163.61 km/h) |
| 100 mph (160.93 km/h) | 107.01 mph (172.22 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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