188Best 215/35 R18 tires
9 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Atlas Force UHP at 84/100.
23.9″
overall diameter
8.5″
section width
18″
rim diameter
843
revs per mile
Best 215/35 R18 summer tires
5188
275
374
466
565Best 215/35 R18 all-season tires
3
184
284
372More top-rated 215/35 R18 tires
1
Conversion
215/35 R18 in inches
| Overall diameter | 23.9″ |
| Section width | 8.5″ |
| Rim diameter | 18″ |
| Sidewall height | 75 mm |
| Circumference | 75.2″ |
| Revolutions per mile | 843 |
The closest flotation size is 28x12.00R18 — 17% taller and 41.8% wider. Compare them in the calculator.
Wheels
What rims fit 215/35 R18 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
6″
Ideal
7″
Maximum
7.5″
Rim diameter is fixed at 18″ — only the width varies. Estimated from the 8.5″ section width (70–90% rule).
Fitted from the factory on rims: 18x7, 18x7.5.
Popular comparisons
Sizes often compared with 215/35 R18
Close alternatives — each opens in the tire size calculator.
Sidewall
215/35 R18 — what does it mean?
| Parameter | Meaning |
|---|---|
| 215 | The first number is the section width — 215 mm, or about 8.5 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 75 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. |