225/65R17 tire size

A 225/65R17 tire is 28.5 inches (724 mm) tall and 8.9 inches (225 mm) wide, and fits a 17-inch wheel. In inch sizing it is about a 28.5x8.9R17.

Overall diameter28.52in724 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
275/35R21	28.6″	+0.2%	10.8″	3.8″	21″
225/70R16	28.4″	−0.4%	8.9″	6.2″	16″
225/60R18	28.6″	+0.4%	8.9″	5.3″	18″
245/50R19	28.6″	+0.5%	9.6″	4.8″	19″
275/40R20	28.7″	+0.5%	10.8″	4.3″	20″
245/45R20	28.7″	+0.6%	9.6″	4.3″	20″
215/75R16	28.7″	+0.6%	8.5″	6.3″	16″
235/45R20	28.3″	−0.7%	9.3″	4.2″	20″
225/75R15	28.3″	−0.8%	8.9″	6.6″	15″
225/55R19	28.7″	+0.8%	8.9″	4.9″	19″
275/45R19	28.7″	+0.8%	10.8″	4.9″	19″
235/50R19	28.3″	−0.9%	9.3″	4.6″	19″

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

225: Section width: 225 mm (8.9 in) from sidewall to sidewall.
65: Aspect ratio: the sidewall is 65% as tall as the tire is wide, 146 mm (5.8 in).
R: Radial construction, used by almost every modern tire.
17: Fits a 17-inch wheel.

225/65R17 is about 28.5 inches tall and 8.9 inches wide, on a 17-inch wheel, roughly a 28.5x8.9R17 in inch sizing.

Nearly. It measures 28.5 inches, so it falls between 28 and 29 inches.

275/35R21, 225/70R16, 225/60R18 are the closest common sizes, all within 0.4% of its diameter, so the speedometer stays close to accurate.

245/65R17 is 3.6% taller, so at an indicated 60 mph you would really be doing 62.2 mph. Compare 225/65R17 and 245/65R17.

About 707 per mile (439 per km), from a 89.6-inch circumference.