Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/45-18 | 205/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.26 (641.7) | 24.26 (616.3) | -1 (-25.4) -4% |
| Width inches (mm) | 8.07 (205) | 8.07 (205) | 0 (0) 0% |
| Circum. inches (mm) | 79.37 (2015.96) | 76.23 (1936.16) | -3.14 (-79.8) -4% |
| Sidewall Height inches (mm) | 3.63 (92.25) | 3.63 (92.25) | 0 (0) 0% |
| Revolutions per mile (km) | 798.3 (496.04) | 831.2 (516.48) | 32.9 (20.44) 4.1% |
205/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.21 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24.01 mph (38.64 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.37 km/h) |
| 35 mph (56.33 km/h) | 33.61 mph (54.1 km/h) |
| 40 mph (64.37 km/h) | 38.42 mph (61.83 km/h) |
| 45 mph (72.42 km/h) | 43.22 mph (69.55 km/h) |
| 50 mph (80.47 km/h) | 48.02 mph (77.28 km/h) |
| 55 mph (88.51 km/h) | 52.82 mph (85.01 km/h) |
| 60 mph (96.56 km/h) | 57.63 mph (92.74 km/h) |
| 65 mph (104.61 km/h) | 62.43 mph (100.47 km/h) |
| 70 mph (112.65 km/h) | 67.23 mph (108.2 km/h) |
| 75 mph (120.7 km/h) | 72.03 mph (115.92 km/h) |
| 80 mph (128.75 km/h) | 76.83 mph (123.65 km/h) |
| 85 mph (136.79 km/h) | 81.64 mph (131.38 km/h) |
| 90 mph (144.84 km/h) | 86.44 mph (139.11 km/h) |
| 95 mph (152.89 km/h) | 91.24 mph (146.84 km/h) |
| 100 mph (160.93 km/h) | 96.04 mph (154.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2115 | 2457 | 2646 | 2763 | 2889 | 2979 | 3078 | 3195 | 3357 | 3519 | 3699 | 3843 | 4104 | 4393 | 4618 | 4762 | 4843 | 5140 | 5554 | 6454 |
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