Best 165/45 R15 tires
We don't have rated tires listed in this size yet — the conversion, rim fitment and comparisons below still apply.
20.8″
overall diameter
6.5″
section width
15″
rim diameter
967.5
revs per mile
Conversion
165/45 R15 in inches
| Overall diameter | 20.8″ |
| Section width | 6.5″ |
| Rim diameter | 15″ |
| Sidewall height | 74 mm |
| Circumference | 65.5″ |
| Revolutions per mile | 967.5 |
The closest flotation size is 26x10R15 — 24.7% taller and 53.9% wider. Compare them in the calculator.
Wheels
What rims fit 165/45 R15 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
4.5″
Ideal
5″
Maximum
6″
Rim diameter is fixed at 15″ — only the width varies. Estimated from the 6.5″ section width (70–90% rule).
Fitted from the factory on rims: 15x4.5, 15x5, 15x5.5.
Sidewall
165/45 R15 — what does it mean?
| Parameter | Meaning |
|---|---|
| 165 | The first number is the section width — 165 mm, or about 6.5 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 74 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. |