275/70R17 tire size

A 275/70R17 tire is 32.2 inches (817 mm) tall and 10.8 inches (275 mm) wide, and fits a 17-inch wheel. In inch sizing it is about a 32.2x10.8R17.

Overall diameter32.16in817 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
285/45R22	32.1″	−0.2%	11.2″	5.0″	22″
275/65R18	32.1″	−0.3%	10.8″	7.0″	18″
255/75R17	32.1″	−0.3%	10.0″	7.5″	17″
255/70R18	32.1″	−0.3%	10.0″	7.0″	18″
32x11.50R15	32.0″	−0.5%	11.5″	8.5″	15″
285/55R20	32.3″	+0.6%	11.2″	6.2″	20″
275/55R20	31.9″	−0.8%	10.8″	6.0″	20″
305/35R24	32.4″	+0.8%	12.0″	4.2″	24″
285/65R18	32.6″	+1.3%	11.2″	7.3″	18″
265/70R18	32.6″	+1.4%	10.4″	7.3″	18″
265/75R16	31.6″	−1.6%	10.4″	7.8″	16″
265/70R17	31.6″	−1.7%	10.4″	7.3″	17″

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

275: Section width: 275 mm (10.8 in) from sidewall to sidewall.
70: Aspect ratio: the sidewall is 70% as tall as the tire is wide, 193 mm (7.6 in).
R: Radial construction, used by almost every modern tire.
17: Fits a 17-inch wheel.

275/70R17 is about 32.2 inches tall and 10.8 inches wide, on a 17-inch wheel, roughly a 32.2x10.8R17 in inch sizing.

Yes. At 32.2 inches it is sold and fitted as a 32-inch tire.

285/45R22, 275/65R18, 255/75R17 are the closest common sizes, all within 0.3% of its diameter, so the speedometer stays close to accurate.

285/75R17 is 5.2% taller, so at an indicated 60 mph you would really be doing 63.1 mph. Compare 275/70R17 and 285/75R17.

About 627 per mile (390 per km), from a 101.0-inch circumference.