225/45R17 Tire Size
Dimensions of a 225/45R17 tire in inches and millimeters, with equivalent and plus sizes.
225/45R17 dimensions
A 225/45R17 tire is 225 mm wide with a sidewall that is 45% of the width (101 mm), mounted on a 17-inch rim. Its overall diameter is about 24.97 inches (634 mm), so it is roughly a 25.0-inch tall tire.
| Overall diameter | 24.97 in | 634 mm |
|---|---|---|
| Section width | 8.86 in | 225 mm |
| Sidewall height | 3.99 in | 101.2 mm |
| Rim diameter | 17 in | 432 mm |
| Circumference | 78.5 in | 1993 mm |
| Revolutions | 808 per mile | 502 per km |
Equivalent sizes on a 17-inch rim
These sizes stay within ±3% of the 225/45R17 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 |
|---|---|---|---|
| 205/50R17 | 25.07 in | 637 mm | +0.4% |
| 245/40R17 | 24.72 in | 628 mm | -1.0% |
| 215/45R17 | 24.62 in | 625 mm | -1.4% |
| 235/45R17 | 25.33 in | 643 mm | +1.4% |
| 215/50R17 | 25.46 in | 647 mm | +2.0% |
| 235/40R17 | 24.40 in | 620 mm | -2.3% |
| 205/45R17 | 24.26 in | 616 mm | -2.8% |
| 245/45R17 | 25.68 in | 652 mm | +2.8% |
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 |
|---|---|---|---|
| 215/35R19 | 24.93 in | 633 mm | -0.2% |
| 255/30R19 | 25.02 in | 636 mm | +0.2% |
| 255/35R18 | 25.03 in | 636 mm | +0.2% |
| 255/45R16 | 25.04 in | 636 mm | +0.3% |
| 225/50R16 | 24.86 in | 631 mm | -0.5% |
| 225/40R18 | 25.09 in | 637 mm | +0.5% |
| 245/30R19 | 24.79 in | 630 mm | -0.7% |
| 215/40R18 | 24.77 in | 629 mm | -0.8% |
| 245/35R18 | 24.75 in | 629 mm | -0.9% |
| 225/35R19 | 25.20 in | 640 mm | +0.9% |
Compare 225/45R17 with another size →
Frequently asked questions
How tall is a 225/45R17 tire?
About 24.97 inches (634 mm) in overall diameter.
How wide is a 225/45R17 tire?
The section width is 225 mm, about 8.9 inches.
What size can replace 225/45R17?
On the same rim, 205/50R17 is the closest size (+0.4% diameter). Use only sizes approved for your vehicle.
How many revolutions per mile does a 225/45R17 tire make?
About 808 revolutions per mile (502 per km).
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