265/65R18 tire size

A 265/65R18 tire is 31.6 inches (802 mm) tall and 10.4 inches (265 mm) wide, and fits a 18-inch wheel. In inch sizing it is about a 31.6x10.4R18.

Overall diameter31.56in802 mm

Drawn to scale from the nominal size.

Compare with another size Open in calculator Check wheel fitment

Shop 265/65R18 tires

Opens the store’s own search

Prices and stock change often, so check a few stores. We don’t earn anything from these links.

Size	Diameter	Difference	Width	Sidewall	Wheel
265/70R17	31.6″	+0.1%	10.4″	7.3″	17″
305/40R22	31.6″	+0.1%	12.0″	4.8″	22″
265/75R16	31.6″	+0.3%	10.4″	7.8″	16″
245/75R17	31.5″	−0.3%	9.6″	7.2″	17″
285/50R20	31.2″	−1.1%	11.2″	5.6″	20″
275/55R20	31.9″	+1.1%	10.8″	6.0″	20″
32x11.50R15	32.0″	+1.4%	11.5″	8.5″	15″
275/65R17	31.1″	−1.5%	10.8″	7.0″	17″
255/70R18	32.1″	+1.6%	10.0″	7.0″	18″
255/75R17	32.1″	+1.6%	10.0″	7.5″	17″
255/70R17	31.1″	−1.6%	10.0″	7.0″	17″
255/65R18	31.1″	−1.6%	10.0″	6.5″	18″

Within 3% of the original diameter is the range most tire shops treat as a direct swap. Check load index and clearance too.

265: Section width: 265 mm (10.4 in) from sidewall to sidewall.
65: Aspect ratio: the sidewall is 65% as tall as the tire is wide, 172 mm (6.8 in).
R: Radial construction, used by almost every modern tire.
18: Fits a 18-inch wheel.

265/65R18 is about 31.6 inches tall and 10.4 inches wide, on a 18-inch wheel, roughly a 31.6x10.4R18 in inch sizing.

Nearly. It measures 31.6 inches, so it falls between 31 and 32 inches.

265/70R17, 305/40R22, 265/75R16 are the closest common sizes, all within 0.3% of its diameter, so the speedometer stays close to accurate.

285/65R18 is 3.2% taller, so at an indicated 60 mph you would really be doing 61.9 mph. Compare 265/65R18 and 285/65R18.

About 639 per mile (397 per km), from a 99.2-inch circumference.