Tires Size 225/65R18
Dimensions, specs, and every size 225/65R18 tire currently in stock
29.52"
750 mm · calculated
225 mm
8.86 inches
5.76"
146.3 mm · 65% profile
18"
457.2 mm
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225/65R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 8.86 in | 225 mm |
| Aspect ratio | 65% | — |
| Sidewall height | 5.76 in | 146.3 mm |
| Overall diameter (calculated) | 29.52 in | 750 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 225/65R18 mean?
Reading the code on your sidewall
225 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 146.3 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.
225/65R18 Questions & Answers
Dimensions and fitment guidelines for size 225/65R18
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