Tires Size 245/75R18
Dimensions, specs, and every size 245/75R18 tire currently in stock
32.48"
825 mm · calculated
245 mm
9.65 inches
7.24"
183.8 mm · 75% profile
18"
457.2 mm
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245/75R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 9.65 in | 245 mm |
| Aspect ratio | 75% | — |
| Sidewall height | 7.24 in | 183.8 mm |
| Overall diameter (calculated) | 32.48 in | 825 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 245/75R18 mean?
Reading the code on your sidewall
245 mm
The distance from sidewall to sidewall across the tire's widest point.
75% profile
The sidewall stands 75% of the section width, which is 183.8 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.
245/75R18 Questions & Answers
Dimensions and fitment guidelines for size 245/75R18
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