179Best 225/45 R15 tires
12 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Hoosier R7 at 92/100.
23″
overall diameter
8.9″
section width
15″
rim diameter
877.9
revs per mile
Best 225/45 R15 summer tires
9179
281
379
480
574
674
774
871
964More top-rated 225/45 R15 tires
3
366Conversion
225/45 R15 in inches
| Overall diameter | 23″ |
| Section width | 8.9″ |
| Rim diameter | 15″ |
| Sidewall height | 101 mm |
| Circumference | 72.2″ |
| Revolutions per mile | 877.9 |
The closest flotation size is 26x10R15 — 13.2% taller and 12.9% wider. Compare them in the calculator.
Wheels
What rims fit 225/45 R15 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
6″
Ideal
7″
Maximum
8″
Rim diameter is fixed at 15″ — only the width varies. Estimated from the 8.9″ section width (70–90% rule).
Fitted from the factory on rims: 15x7.5.
Popular comparisons
Sizes often compared with 225/45 R15
Close alternatives — each opens in the tire size calculator.
Sidewall
225/45 R15 — what does it mean?
| Parameter | Meaning |
|---|---|
| 225 | The first number is the section width — 225 mm, or about 8.9 inches across the widest part of the tire. |
| 45 | The second number is the aspect ratio: sidewall height as a percentage of width. At 45%, the sidewall is about 101 mm tall. |
| R15 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 15-inch wheel. |