Tires Size 275/65R18
Dimensions, specs, and every size 275/65R18 tire currently in stock
32.08"
815 mm · calculated
275 mm
10.83 inches
7.04"
178.8 mm · 65% profile
18"
457.2 mm
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275/65R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 10.83 in | 275 mm |
| Aspect ratio | 65% | — |
| Sidewall height | 7.04 in | 178.8 mm |
| Overall diameter (calculated) | 32.08 in | 815 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 275/65R18 mean?
Reading the code on your sidewall
275 mm
The distance from sidewall to sidewall across the tire's widest point.
65% profile
The sidewall stands 65% of the section width, which is 178.8 mm on this size.
Radial
The body plies run across the tire at right angles to the direction of travel.
18 in
Fits a wheel measuring 18 inches across.
275/65R18 Questions & Answers
Dimensions and fitment guidelines for size 275/65R18
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