Best 265/40 R23 tires
We don't have rated tires listed in this size yet — the conversion, rim fitment and comparisons below still apply.
31.3″
overall diameter
10.4″
section width
23″
rim diameter
643.4
revs per mile
Conversion
265/40 R23 in inches
| Overall diameter | 31.3″ |
| Section width | 10.4″ |
| Rim diameter | 23″ |
| Sidewall height | 106 mm |
| Circumference | 98.5″ |
| Revolutions per mile | 643.4 |
Wheels
What rims fit 265/40 R23 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
7.5″
Ideal
8.5″
Maximum
9.5″
Rim diameter is fixed at 23″ — only the width varies. Estimated from the 10.4″ section width (70–90% rule).
Sidewall
265/40 R23 — what does it mean?
| Parameter | Meaning |
|---|---|
| 265 | The first number is the section width — 265 mm, or about 10.4 inches across the widest part of the tire. |
| 40 | The second number is the aspect ratio: sidewall height as a percentage of width. At 40%, the sidewall is about 106 mm tall. |
| R23 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 23-inch wheel. |