Best 235/70R18 tires
1 rated tire available in this size, scored on dry, wet, snow, comfort and wear.
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Every rated 235/70R18 tire, by season
Ranked by our Relative score, weighed against how many reviews and tests stand behind it.
How scores work
- Relative score
- 0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, it uses that one.
- Ranking
- A score backed by only a few reviews or tests is pulled toward the typical score before ranking, so a 95 from a dozen reviews can rank below a 92 from hundreds.
Best 235/70R18 all-season tires
1
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Nearest sizes with rated tires
Within 3% of the overall diameter, on the same rim first. Check the sizes approved for your vehicle before you switch.
235/70R18 in inches
| Overall diameter | 31″ |
| Section width | 9.3″ |
| Rim diameter | 18″ |
| Sidewall height | 165 mm |
| Circumference | 97.2″ |
| Revolutions per mile | 651.6 |
Revolutions per mile: how many times the tire turns in one mile, the count your speedometer is calibrated to.
What rims fit 235/70R18 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
The rim diameter is fixed at 18″; only the width can change. Rims are usually 70–90% as wide as the tire’s 9.3″ section width.
Sizes often compared with 235/70R18
Close alternatives — each opens in the tire size calculator.
235/70R18 — 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. |
| 70 | The second number is the aspect ratio: sidewall height as a percentage of width. At 70%, the sidewall is about 165 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. |