Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-18 | 215/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.74 (704.7) | 26.31 (668.3) | -1.43 (-36.4) -5.2% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 87.16 (2213.88) | 82.66 (2099.53) | -4.5 (-114.35) -5.2% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.66 (118.25) | -0.22 (-5.5) -4.4% |
| Revolutions per mile (km) | 726.93 (451.69) | 766.53 (476.3) | 39.59 (24.6) 5.4% |
215/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.97 mph (30.52 km/h) |
| 25 mph (40.23 km/h) | 23.71 mph (38.16 km/h) |
| 30 mph (48.28 km/h) | 28.45 mph (45.79 km/h) |
| 35 mph (56.33 km/h) | 33.19 mph (53.42 km/h) |
| 40 mph (64.37 km/h) | 37.93 mph (61.05 km/h) |
| 45 mph (72.42 km/h) | 42.68 mph (68.68 km/h) |
| 50 mph (80.47 km/h) | 47.42 mph (76.31 km/h) |
| 55 mph (88.51 km/h) | 52.16 mph (83.94 km/h) |
| 60 mph (96.56 km/h) | 56.9 mph (91.57 km/h) |
| 65 mph (104.61 km/h) | 61.64 mph (99.2 km/h) |
| 70 mph (112.65 km/h) | 66.38 mph (106.84 km/h) |
| 75 mph (120.7 km/h) | 71.13 mph (114.47 km/h) |
| 80 mph (128.75 km/h) | 75.87 mph (122.1 km/h) |
| 85 mph (136.79 km/h) | 80.61 mph (129.73 km/h) |
| 90 mph (144.84 km/h) | 85.35 mph (137.36 km/h) |
| 95 mph (152.89 km/h) | 90.09 mph (144.99 km/h) |
| 100 mph (160.93 km/h) | 94.83 mph (152.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1951 | 2266 | 2440 | 2548 | 2665 | 2748 | 2839 | 2947 | 3096 | 3246 | 3412 | 3544 | 3785 | 4051 | 4258 | 4391 | 4466 | 4740 | 5122 | 5952 |
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