205/45R17 Tire Size
Dimensions of a 205/45R17 tire in inches and millimeters, with equivalent and plus sizes.
205/45R17 dimensions
A 205/45R17 tire is 205 mm wide with a sidewall that is 45% of the width (92 mm), mounted on a 17-inch rim. Its overall diameter is about 24.26 inches (616 mm), so it is roughly a 24.3-inch tall tire.
| Overall diameter | 24.26 in | 616 mm |
|---|---|---|
| Section width | 8.07 in | 205 mm |
| Sidewall height | 3.63 in | 92.2 mm |
| Rim diameter | 17 in | 432 mm |
| Circumference | 76.2 in | 1936 mm |
| Revolutions | 831 per mile | 516 per km |
Equivalent sizes on a 17-inch rim
These sizes stay within ±3% of the 205/45R17 diameter on the same rim — the range most tire shops use. Not every size is made in every tire model, and only sizes approved for your vehicle (with the right load and speed rating) should be fitted.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 185/50R17 | 24.28 in | 617 mm | +0.1% |
| 225/40R17 | 24.09 in | 612 mm | -0.7% |
| 195/45R17 | 23.91 in | 607 mm | -1.5% |
| 215/45R17 | 24.62 in | 625 mm | +1.5% |
| 195/50R17 | 24.68 in | 627 mm | +1.7% |
| 215/40R17 | 23.77 in | 604 mm | -2.0% |
| 185/45R17 | 23.56 in | 598 mm | -2.9% |
| 225/45R17 | 24.97 in | 634 mm | +2.9% |
Plus and minus sizes
Changing the rim size? These options on 16-, 18- and 19-inch rims keep the overall diameter within ±3%.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 225/30R19 | 24.31 in | 618 mm | +0.2% |
| 225/35R18 | 24.20 in | 615 mm | -0.3% |
| 235/45R16 | 24.33 in | 618 mm | +0.3% |
| 195/35R19 | 24.37 in | 619 mm | +0.5% |
| 195/40R18 | 24.14 in | 613 mm | -0.5% |
| 195/55R16 | 24.44 in | 621 mm | +0.7% |
| 215/30R19 | 24.08 in | 612 mm | -0.8% |
| 205/50R16 | 24.07 in | 611 mm | -0.8% |
| 205/40R18 | 24.46 in | 621 mm | +0.8% |
| 215/50R16 | 24.46 in | 621 mm | +0.8% |
Compare 205/45R17 with another size →
Frequently asked questions
How tall is a 205/45R17 tire?
About 24.26 inches (616 mm) in overall diameter.
How wide is a 205/45R17 tire?
The section width is 205 mm, about 8.1 inches.
What size can replace 205/45R17?
On the same rim, 185/50R17 is the closest size (+0.1% diameter). Use only sizes approved for your vehicle.
How many revolutions per mile does a 205/45R17 tire make?
About 831 revolutions per mile (516 per km).
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