Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-21 | 215/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.97 (735.9) | 27.16 (689.8) | -1.81 (-46.1) -6.3% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 91.02 (2311.9) | 85.32 (2167.07) | -5.7 (-144.83) -6.3% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.08 (129) | 1.09 (27.75) 27.4% |
| Revolutions per mile (km) | 696.11 (432.54) | 742.64 (461.45) | 46.52 (28.91) 6.7% |
215/60-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.75 mph (30.17 km/h) |
| 25 mph (40.23 km/h) | 23.43 mph (37.71 km/h) |
| 30 mph (48.28 km/h) | 28.12 mph (45.26 km/h) |
| 35 mph (56.33 km/h) | 32.81 mph (52.8 km/h) |
| 40 mph (64.37 km/h) | 37.49 mph (60.34 km/h) |
| 45 mph (72.42 km/h) | 42.18 mph (67.88 km/h) |
| 50 mph (80.47 km/h) | 46.87 mph (75.43 km/h) |
| 55 mph (88.51 km/h) | 51.55 mph (82.97 km/h) |
| 60 mph (96.56 km/h) | 56.24 mph (90.51 km/h) |
| 65 mph (104.61 km/h) | 60.93 mph (98.05 km/h) |
| 70 mph (112.65 km/h) | 65.61 mph (105.6 km/h) |
| 75 mph (120.7 km/h) | 70.3 mph (113.14 km/h) |
| 80 mph (128.75 km/h) | 74.99 mph (120.68 km/h) |
| 85 mph (136.79 km/h) | 79.68 mph (128.23 km/h) |
| 90 mph (144.84 km/h) | 84.36 mph (135.77 km/h) |
| 95 mph (152.89 km/h) | 89.05 mph (143.31 km/h) |
| 100 mph (160.93 km/h) | 93.74 mph (150.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1890 | 2195 | 2364 | 2469 | 2581 | 2662 | 2750 | 2855 | 3000 | 3144 | 3305 | 3434 | 3667 | 3924 | 4126 | 4254 | 4327 | 4592 | 4962 | 5766 |
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