285/70R17 tire size

A 285/70R17 tire is 32.7 inches (831 mm) tall and 11.2 inches (285 mm) wide, and fits a 17-inch wheel. In inch sizing it is about a 32.7x11.2R17.

Overall diameter32.71in831 mm

Drawn to scale from the nominal size.

Compare with another size Open in calculator Check wheel fitment

Shop 285/70R17 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
295/55R20	32.8″	+0.2%	11.6″	6.4″	20″
305/45R22	32.8″	+0.3%	12.0″	5.4″	22″
265/70R18	32.6″	−0.3%	10.4″	7.3″	18″
305/70R16	32.8″	+0.3%	12.0″	8.4″	16″
285/65R18	32.6″	−0.4%	11.2″	7.3″	18″
285/75R16	32.8″	+0.4%	11.2″	8.4″	16″
275/60R20	33.0″	+0.9%	10.8″	6.5″	20″
33x12.50R15	33.0″	+0.9%	12.5″	9.0″	15″
33x12.50R17	33.0″	+0.9%	12.5″	8.0″	17″
33x12.50R18	33.0″	+0.9%	12.5″	7.5″	18″
33x12.50R20	33.0″	+0.9%	12.5″	6.5″	20″
305/35R24	32.4″	−0.9%	12.0″	4.2″	24″

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

285: Section width: 285 mm (11.2 in) from sidewall to sidewall.
70: Aspect ratio: the sidewall is 70% as tall as the tire is wide, 200 mm (7.9 in).
R: Radial construction, used by almost every modern tire.
17: Fits a 17-inch wheel.

285/70R17 is about 32.7 inches tall and 11.2 inches wide, on a 17-inch wheel, roughly a 32.7x11.2R17 in inch sizing.

Yes. At 32.7 inches it is sold and fitted as a 33-inch tire.

295/55R20, 305/45R22, 265/70R18 are the closest common sizes, all within 0.3% of its diameter, so the speedometer stays close to accurate.

285/75R17 is 3.4% taller, so at an indicated 60 mph you would really be doing 62.1 mph. Compare 285/70R17 and 285/75R17.

About 617 per mile (383 per km), from a 102.8-inch circumference.