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275/65R18 tire size
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32.1" × 10.8"
275/65R18 ≈ 32.1x10.8R18 · approximate, new & unloaded
275/65R18 dimensions
| Measurement | Inches | mm |
|---|---|---|
| Overall diameter | 32.07 | 815 |
| Section width | 10.83 | 275 |
| Sidewall height | 7.04 | 178.8 |
| Wheel diameter | 18 | 457 |
| Circumference | 100.77 | 2559 |
| Revolutions per mile | 629 | |
Sizes close to 275/65R18
| Size | Diameter | Difference | Real speed at 60 mph indicated |
|---|---|---|---|
| 275/55R20 | 31.91" | -0.52% | 59.7 |
| 285/55R20 | 32.34" | +0.83% | 60.5 |
| 265/75R16 | 31.65" | -1.33% | 59.2 |
| 265/70R17 | 31.61" | -1.46% | 59.1 |
| 265/65R18 | 31.56" | -1.60% | 59.0 |
| 285/65R18 | 32.59" | +1.60% | 61.0 |
Diameter only - also check load index, speed rating, wheel width range and clearance with a tire professional.
Compare 275/65R18 with another size
FAQ
How tall is a 275/65R18 tire in inches?
A 275/65R18 tire is about 32.1 inches tall (815 mm), 10.8 inches wide, with a 7.0-inch sidewall, for a 18-inch wheel.
What is 275/65R18 in inches (flotation size)?
Roughly 32.1x10.8R18.
How many revolutions per mile does a 275/65R18 tire make?
About 629 revolutions per mile (circumference 100.8 in), new and unloaded.
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