189Best 255/70 R15 tires
6 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Cooper Discoverer AT3 4S at 94/100.
29.1″
overall diameter
10″
section width
15″
rim diameter
694.1
revs per mile
Best 255/70 R15 all-season tires
3189
281
372Best 255/70 R15 all-terrain tires
2
194
289More top-rated 255/70 R15 tires
1
189Conversion
255/70 R15 in inches
| Overall diameter | 29.1″ |
| Section width | 10″ |
| Rim diameter | 15″ |
| Sidewall height | 179 mm |
| Circumference | 91.3″ |
| Revolutions per mile | 694.1 |
The closest flotation size is 29x10.50R15 — 0.2% shorter and 4.6% wider. Compare them in the calculator.
Wheels
What rims fit 255/70 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: 15x7, 15x7.5, 15x8.
Popular comparisons
Sizes often compared with 255/70 R15
Close alternatives — each opens in the tire size calculator.
Sidewall
255/70 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. |
| 70 | The second number is the aspect ratio: sidewall height as a percentage of width. At 70%, the sidewall is about 179 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. |