195Best 235/55 R18 tires
162 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Defender LTX M/S at 95/100.
28.2″
overall diameter
9.3″
section width
18″
rim diameter
715.8
revs per mile
Best 235/55 R18 all-season tires
73195
292
391
493
589
689
791
888
988
1087
1188
129161 more rated tires in this size are listed on their brand pages.
More top-rated 235/55 R18 tires
34
192
293
388
490
588
686
787
893
987
1085
128422 more rated tires in this size are listed on their brand pages.
Best 235/55 R18 summer tires
31
193
287
389
490
582
683
787
881
985
1078
1183
127719 more rated tires in this size are listed on their brand pages.
Best 235/55 R18 winter tires
20
192
291
385
488
584
681
778
878
978
1098
1176
12868 more rated tires in this size are listed on their brand pages.
Best 235/55 R18 all-terrain tires
4
189
291
383
469Conversion
235/55 R18 in inches
| Overall diameter | 28.2″ |
| Section width | 9.3″ |
| Rim diameter | 18″ |
| Sidewall height | 129 mm |
| Circumference | 88.5″ |
| Revolutions per mile | 715.8 |
The closest flotation size is 28x12.00R18 — 0.6% shorter and 29.7% wider. Compare them in the calculator.
Wheels
What rims fit 235/55 R18 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
6.5″
Ideal
7.5″
Maximum
8.5″
Rim diameter is fixed at 18″ — only the width varies. Estimated from the 9.3″ section width (70–90% rule).
Fitted from the factory on rims: 18x6.5, 18x7, 18x7.5, 18x8.
Popular comparisons
Sizes often compared with 235/55 R18
Close alternatives — each opens in the tire size calculator.
Sidewall
235/55 R18 — what does it mean?
| Parameter | Meaning |
|---|---|
| 235 | The first number is the section width — 235 mm, or about 9.3 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 129 mm tall. |
| R18 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 18-inch wheel. |