187Best 265/55 R20 tires
2 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Accelera Omikron A/T at 88/100.
31.5″
overall diameter
10.4″
section width
20″
rim diameter
640.7
revs per mile
Best 265/55 R20 summer tires
1187Best 265/55 R20 all-terrain tires
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188Conversion
265/55 R20 in inches
| Overall diameter | 31.5″ |
| Section width | 10.4″ |
| Rim diameter | 20″ |
| Sidewall height | 146 mm |
| Circumference | 98.9″ |
| Revolutions per mile | 640.7 |
The closest flotation size is 33x11.50R20 — 4.8% taller and 10.2% wider. Compare them in the calculator.
Wheels
What rims fit 265/55 R20 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 20″ — only the width varies. Estimated from the 10.4″ section width (70–90% rule).
Fitted from the factory on rims: 20x7.5, 20x8, 20x8.5.
Sidewall
265/55 R20 — 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. |
| 55 | The second number is the aspect ratio: sidewall height as a percentage of width. At 55%, the sidewall is about 146 mm tall. |
| R20 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 20-inch wheel. |