225/60R18 tire size
225/60R18 (listed here under crossover & SUV sizes) is 28.63 in tall and 8.86 in wide, with a 5.31 in sidewall, and is made for an 18-inch wheel.
| Measurement | Imperial | Metric |
|---|---|---|
| Overall diameter (height) | 28.63 in | 727 mm |
| Section width | 8.86 in | 225 mm |
| Sidewall height | 5.31 in | 135 mm |
| Rim (wheel) diameter | 18 in | 457 mm |
| Aspect ratio | 60% | — |
| Circumference | 89.9 in | 2285 mm |
| Revolutions | 704 per mile | 438 per km |
Compare 225/60R18 with any other size →
225/60R18 in inches
225/60R18 is 28.63 × 8.86 in on an 18-inch rim — roughly 28.5x9.00R18 in inch (flotation) terms.
Other metric sizes on an 18-inch rim within ±3% of its diameter:
| Size | Diameter | Width | vs original |
|---|---|---|---|
| 245/55R18 | 28.61 in | 9.65 in | −0.07% |
| 205/65R18 | 28.49 in | 8.07 in | −0.48% |
| 195/70R18 | 28.75 in | 7.68 in | +0.41% |
| 265/50R18 | 28.43 in | 10.43 in | −0.69% |
| 215/65R18 | 29.00 in | 8.46 in | +1.31% |
| 185/75R18 | 28.93 in | 7.28 in | +1.03% |
| 235/55R18 | 28.18 in | 9.25 in | −1.58% |
| 255/55R18 | 29.04 in | 10.04 in | +1.44% |
| 235/60R18 | 29.10 in | 9.25 in | +1.65% |
| 215/60R18 | 28.16 in | 8.46 in | −1.65% |
Computed combinations of standard widths and aspect ratios; not every size is manufactured. A similar diameter does not mean a size fits or is approved for your vehicle.
Sizes on other wheels with nearly the same height
From our size pages, these stay within ±3% of 225/60R18's diameter:
Height difference to other sizes on this site
| Other size | Height difference | True speed at 60 mph indicated | Diameter vs ±3% rule of thumb |
|---|---|---|---|
| 225/65R17 | −0.11 in (−0.4%) | 59.8 mph | inside |
Speeds assume the speedometer was accurate on 225/60R18.
Geometry only: this does not confirm that a size fits, is approved for or is safe on a particular vehicle. Wheel width and offset, suspension, clearances, load index, speed rating, the vehicle maker's specification and local regulations all apply — check with your owner's manual and a qualified tire professional.
Detailed comparisons
Frequently asked questions
How tall is a 225/60R18 tire?
28.63 inches (727 mm) in nominal overall diameter. Measured height varies slightly by brand and model and decreases as the tread wears.
What is 225/60R18 in inches?
About 28.6 × 8.9 in on an 18-inch wheel, which in inch (flotation) notation is roughly 28.5x9.00R18.
How tall is 225/60R18 in whole inches?
28.63 in, which rounds to 29 in. Tire sellers and owners sometimes round sizes differently, and measured heights vary by model.
How many revolutions per mile does a 225/60R18 make?
About 704 revolutions per mile (438 per km) from its nominal circumference of 89.9 in. Manufacturer-measured values are slightly higher because the loaded tire deflects.
Nominal dimensions computed from the size code; see methodology. Always confirm load index, speed rating and fitment for your vehicle.
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