Tires Size 235/45R18
Dimensions, specs, and every size 235/45R18 tire currently in stock
26.34"
669 mm · calculated
235 mm
9.25 inches
4.17"
105.8 mm · 45% profile
18"
457.2 mm
1 product
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235/45R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 9.25 in | 235 mm |
| Aspect ratio | 45% | — |
| Sidewall height | 4.17 in | 105.8 mm |
| Overall diameter (calculated) | 26.34 in | 669 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 235/45R18 mean?
Reading the code on your sidewall
235 mm
The distance from sidewall to sidewall across the tire's widest point.
45% profile
The sidewall stands 45% of the section width, which is 105.8 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.
235/45R18 Questions & Answers
Dimensions and fitment guidelines for size 235/45R18
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