188Best 185/55 R15 tires
32 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the General AltiMAX RT43 at 88/100.
23″
overall diameter
7.3″
section width
15″
rim diameter
876.4
revs per mile
Best 185/55 R15 all-season tires
14188
291
384
483
587
683
784
877
977
1152
12642 more rated tires in this size are listed on their brand pages.
Best 185/55 R15 summer tires
7
189
282
378
497
568
665
766Best 185/55 R15 winter tires
7
284
380
476
575
673
774More top-rated 185/55 R15 tires
4
182
288
385
Conversion
185/55 R15 in inches
| Overall diameter | 23″ |
| Section width | 7.3″ |
| Rim diameter | 15″ |
| Sidewall height | 102 mm |
| Circumference | 72.3″ |
| Revolutions per mile | 876.4 |
The closest flotation size is 26x10R15 — 13% taller and 37.3% wider. Compare them in the calculator.
Wheels
What rims fit 185/55 R15 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
5″
Ideal
6″
Maximum
6.5″
Rim diameter is fixed at 15″ — only the width varies. Estimated from the 7.3″ section width (70–90% rule).
Fitted from the factory on rims: 15x5, 15x5.5, 15x6, 15x6.5.
Popular comparisons
Sizes often compared with 185/55 R15
Close alternatives — each opens in the tire size calculator.
Sidewall
185/55 R15 — what does it mean?
| Parameter | Meaning |
|---|---|
| 185 | The first number is the section width — 185 mm, or about 7.3 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 102 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. |