Best 255/45 R15 tires
We don't have rated tires listed in this size yet — the conversion, rim fitment and comparisons below still apply.
24″
overall diameter
10″
section width
15″
rim diameter
839.1
revs per mile
Conversion
255/45 R15 in inches
| Overall diameter | 24″ |
| Section width | 10″ |
| Rim diameter | 15″ |
| Sidewall height | 115 mm |
| Circumference | 75.5″ |
| Revolutions per mile | 839.1 |
The closest flotation size is 26x10R15 — 8.2% taller and 0.4% narrower. Compare them in the calculator.
Wheels
What rims fit 255/45 R15 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
7″
Ideal
8″
Maximum
9″
Rim diameter is fixed at 15″ — only the width varies. Estimated from the 10″ section width (70–90% rule).
Fitted from the factory on rims: 15x8.
Sidewall
255/45 R15 — what does it mean?
| Parameter | Meaning |
|---|---|
| 255 | The first number is the section width — 255 mm, or about 10 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 115 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. |