184Best 295/40 R18 tires
5 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Hoosier R7 at 92/100.
27.3″
overall diameter
11.6″
section width
18″
rim diameter
739
revs per mile
Best 295/40 R18 summer tires
4184
279
374
465More top-rated 295/40 R18 tires
1
Conversion
295/40 R18 in inches
| Overall diameter | 27.3″ |
| Section width | 11.6″ |
| Rim diameter | 18″ |
| Sidewall height | 118 mm |
| Circumference | 85.7″ |
| Revolutions per mile | 739 |
The closest flotation size is 28x12.00R18 — 2.6% taller and 3.3% wider. Compare them in the calculator.
Wheels
What rims fit 295/40 R18 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8″
Ideal
9.5″
Maximum
10.5″
Rim diameter is fixed at 18″ — only the width varies. Estimated from the 11.6″ section width (70–90% rule).
Sidewall
295/40 R18 — what does it mean?
| Parameter | Meaning |
|---|---|
| 295 | The first number is the section width — 295 mm, or about 11.6 inches across the widest part of the tire. |
| 40 | The second number is the aspect ratio: sidewall height as a percentage of width. At 40%, the sidewall is about 118 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. |