Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/40-18 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.77 (629.2) | 24.97 (634.3) | 0.2 (5.1) 0.8% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 77.82 (1976.69) | 78.45 (1992.71) | 0.63 (16.02) 0.8% |
| Sidewall Height inches (mm) | 3.39 (86) | 3.99 (101.25) | 0.6 (15.25) 17.7% |
| Revolutions per mile (km) | 814.16 (505.9) | 807.61 (501.83) | -6.55 (-4.07) -0.8% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.45 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.56 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.67 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.78 km/h) |
| 40 mph (64.37 km/h) | 40.32 mph (64.9 km/h) |
| 45 mph (72.42 km/h) | 45.36 mph (73.01 km/h) |
| 50 mph (80.47 km/h) | 50.41 mph (81.12 km/h) |
| 55 mph (88.51 km/h) | 55.45 mph (89.23 km/h) |
| 60 mph (96.56 km/h) | 60.49 mph (97.34 km/h) |
| 65 mph (104.61 km/h) | 65.53 mph (105.46 km/h) |
| 70 mph (112.65 km/h) | 70.57 mph (113.57 km/h) |
| 75 mph (120.7 km/h) | 75.61 mph (121.68 km/h) |
| 80 mph (128.75 km/h) | 80.65 mph (129.79 km/h) |
| 85 mph (136.79 km/h) | 85.69 mph (137.9 km/h) |
| 90 mph (144.84 km/h) | 90.73 mph (146.02 km/h) |
| 95 mph (152.89 km/h) | 95.77 mph (154.13 km/h) |
| 100 mph (160.93 km/h) | 100.81 mph (162.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2055 | 2388 | 2571 | 2685 | 2807 | 2895 | 2991 | 3105 | 3262 | 3420 | 3594 | 3734 | 3988 | 4268 | 4487 | 4626 | 4705 | 4994 | 5396 | 6271 |
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