Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/55-18 | 205/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.31 (693.7) | 25.88 (657.3) | -1.43 (-36.4) -5.2% |
| Width inches (mm) | 8.46 (215) | 8.07 (205) | -0.39 (-10) -4.7% |
| Circum. inches (mm) | 85.8 (2179.32) | 81.3 (2064.97) | -4.5 (-114.35) -5.2% |
| Sidewall Height inches (mm) | 4.66 (118.25) | 4.44 (112.75) | -0.22 (-5.5) -4.7% |
| Revolutions per mile (km) | 738.46 (458.86) | 779.36 (484.27) | 40.89 (25.41) 5.5% |
205/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.95 mph (30.5 km/h) |
| 25 mph (40.23 km/h) | 23.69 mph (38.12 km/h) |
| 30 mph (48.28 km/h) | 28.43 mph (45.75 km/h) |
| 35 mph (56.33 km/h) | 33.16 mph (53.37 km/h) |
| 40 mph (64.37 km/h) | 37.9 mph (61 km/h) |
| 45 mph (72.42 km/h) | 42.64 mph (68.62 km/h) |
| 50 mph (80.47 km/h) | 47.38 mph (76.25 km/h) |
| 55 mph (88.51 km/h) | 52.11 mph (83.87 km/h) |
| 60 mph (96.56 km/h) | 56.85 mph (91.49 km/h) |
| 65 mph (104.61 km/h) | 61.59 mph (99.12 km/h) |
| 70 mph (112.65 km/h) | 66.33 mph (106.74 km/h) |
| 75 mph (120.7 km/h) | 71.06 mph (114.37 km/h) |
| 80 mph (128.75 km/h) | 75.8 mph (121.99 km/h) |
| 85 mph (136.79 km/h) | 80.54 mph (129.62 km/h) |
| 90 mph (144.84 km/h) | 85.28 mph (137.24 km/h) |
| 95 mph (152.89 km/h) | 90.02 mph (144.87 km/h) |
| 100 mph (160.93 km/h) | 94.75 mph (152.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 2304 | 2481 | 2591 | 2709 | 2794 | 2886 | 2996 | 3148 | 3300 | 3469 | 3604 | 3848 | 4119 | 4330 | 4465 | 4541 | 4819 | 5207 | 6051 |
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