Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-18 | 205/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 25.88 (657.3) | 0.79 (20.1) 3.2% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 78.81 (2001.82) | 81.3 (2064.97) | 2.49 (63.15) 3.2% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.44 (112.75) | 0.9 (22.75) 25.3% |
| Revolutions per mile (km) | 803.94 (499.54) | 779.36 (484.27) | -24.58 (-15.28) -3.1% |
205/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.79 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.95 mph (49.8 km/h) |
| 35 mph (56.33 km/h) | 36.1 mph (58.1 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.4 km/h) |
| 45 mph (72.42 km/h) | 46.42 mph (74.71 km/h) |
| 50 mph (80.47 km/h) | 51.58 mph (83.01 km/h) |
| 55 mph (88.51 km/h) | 56.73 mph (91.31 km/h) |
| 60 mph (96.56 km/h) | 61.89 mph (99.61 km/h) |
| 65 mph (104.61 km/h) | 67.05 mph (107.91 km/h) |
| 70 mph (112.65 km/h) | 72.21 mph (116.21 km/h) |
| 75 mph (120.7 km/h) | 77.37 mph (124.51 km/h) |
| 80 mph (128.75 km/h) | 82.52 mph (132.81 km/h) |
| 85 mph (136.79 km/h) | 87.68 mph (141.11 km/h) |
| 90 mph (144.84 km/h) | 92.84 mph (149.41 km/h) |
| 95 mph (152.89 km/h) | 98 mph (157.71 km/h) |
| 100 mph (160.93 km/h) | 103.15 mph (166.01 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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