192Best 235/35 R18 tires
2 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Pilot Super Sport at 92/100.
24.5″
overall diameter
9.3″
section width
18″
rim diameter
824
revs per mile
Best 235/35 R18 summer tires
2192
278Conversion
235/35 R18 in inches
| Overall diameter | 24.5″ |
| Section width | 9.3″ |
| Rim diameter | 18″ |
| Sidewall height | 82 mm |
| Circumference | 76.9″ |
| Revolutions per mile | 824 |
The closest flotation size is 28x12.00R18 — 14.4% taller and 29.7% wider. Compare them in the calculator.
Wheels
What rims fit 235/35 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: 18x8, 18x8.5, 18x9.
Popular comparisons
Sizes often compared with 235/35 R18
Close alternatives — each opens in the tire size calculator.
Sidewall
235/35 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. |
| 35 | The second number is the aspect ratio: sidewall height as a percentage of width. At 35%, the sidewall is about 82 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. |