285/65R18 tire size
A 285/65R18 tire is 32.59 in (827.7 mm) tall and 11.22 in (285.0 mm) wide, and turns 619 revolutions per mile.
- 32.59 inOverall diameter
- 7.29 inSidewall height
- 619Revolutions per mile
- 32.6x11.2R18Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 32.59 in | 827.7 mm |
| Section width | 11.22 in | 285.0 mm |
| Sidewall height | 7.29 in | 185.3 mm |
| Rim diameter | 18.00 in | 457.2 mm |
| Circumference | 102.37 in | 2,600 mm |
| Revolutions per mile | 619 | |
| Flotation equivalent | 32.6x11.2R18 (approx.) | |
285/65R18 is a 18-inch tire with a 285 mm (11.22 in) section width and a 65% aspect ratio, giving a 7.29-inch sidewall and a flotation-style size of about 32.6x11.2R18.
Its overall diameter is 32.59 inches, so it rolls 102.4 inches per revolution and turns about 619 times per mile.
40 other sizes in this list are within 3% of that diameter.
Compare 285/65R18 with plausible swaps
- 305/70R16 vs 285/65R18 (+0.69%)
- 285/75R16 vs 285/65R18 (+0.75%)
- 33x12.50R16 vs 285/65R18 (+1.27%)
- 255/85R16 vs 285/65R18 (+1.47%)
- 255/75R17 vs 285/65R18 (−1.62%)
- 275/70R17 vs 285/65R18 (−1.32%)
- 305/65R17 vs 285/65R18 (+0.07%)
- 285/70R17 vs 285/65R18 (+0.37%)
- 33x12.50R17 vs 285/65R18 (+1.27%)
- 255/80R17 vs 285/65R18 (+1.46%)
- 285/60R18 vs 285/65R18 (−3.44%)
- 265/65R18 vs 285/65R18 (−3.14%)
- 275/65R18 vs 285/65R18 (−1.57%)
- 285/65R18 vs 265/70R18 (+0.06%)
- 285/65R18 vs 33x12.50R18 (+1.27%)
- 285/65R18 vs 285/70R18 (+3.44%)
- 285/65R18 vs 255/60R20 (−1.66%)
- 285/65R18 vs 285/55R20 (−0.75%)
- 285/65R18 vs 265/60R20 (−0.21%)
- 285/65R18 vs 295/55R20 (+0.58%)
- 285/65R18 vs 275/60R20 (+1.24%)
- 285/65R18 vs 33x12.50R20 (+1.27%)
- 285/65R18 vs 305/55R20 (+1.91%)
Sizes within 3% of 32.59 in diameter
- 265/70R18 32.61 in (+0.06%)
- 305/65R17 32.61 in (+0.07%)
- 265/60R20 32.52 in (−0.21%)
- 285/70R17 32.71 in (+0.37%)
- 305/35R24 32.41 in (−0.56%)
- 295/55R20 32.78 in (+0.58%)
- 305/45R22 32.81 in (+0.68%)
- 305/70R16 32.81 in (+0.69%)
- 285/75R16 32.83 in (+0.75%)
- 285/55R20 32.34 in (−0.75%)
- 275/60R20 32.99 in (+1.24%)
- 33x12.50R17 33.00 in (+1.27%)
- 33x12.50R22 33.00 in (+1.27%)
- 33x12.50R15 33.00 in (+1.27%)
- 33x12.50R16 33.00 in (+1.27%)
- 33x12.50R18 33.00 in (+1.27%)
- 33x12.50R20 33.00 in (+1.27%)
- 275/70R17 32.16 in (−1.32%)
- 295/35R24 32.13 in (−1.40%)
- 255/80R17 33.06 in (+1.46%)
- 255/85R16 33.07 in (+1.47%)
- 285/45R22 32.10 in (−1.50%)
- 275/65R18 32.07 in (−1.57%)
- 255/75R17 32.06 in (−1.62%)
- 255/70R18 32.06 in (−1.63%)
- 255/60R20 32.05 in (−1.66%)
- 275/70R18 33.16 in (+1.75%)
- 305/50R20 32.01 in (−1.78%)
- 32x11.50R15 32.00 in (−1.80%)
- 305/55R20 33.21 in (+1.91%)
- 285/50R22 33.22 in (+1.95%)
- 295/70R17 33.26 in (+2.07%)
- 275/55R20 31.91 in (−2.08%)
- 275/50R21 31.83 in (−2.33%)
- 235/80R17 31.80 in (−2.40%)
- 275/45R22 31.74 in (−2.59%)
- 235/85R16 31.73 in (−2.63%)
- 285/60R20 33.46 in (+2.69%)
- 325/45R22 33.52 in (+2.85%)
- 265/75R16 31.65 in (−2.88%)
Open 285/65R18 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.