225/75R16 tire size

A 225/75R16 tire is 29.3 inches (744 mm) tall and 8.9 inches (225 mm) wide, and fits a 16-inch wheel. In inch sizing it is about a 29.3x8.9R16.

Overall diameter29.29in744 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
265/35R22	29.3″	+0.1%	10.4″	3.7″	22″
265/40R21	29.3″	+0.2%	10.4″	4.2″	21″
265/45R20	29.4″	+0.3%	10.4″	4.7″	20″
235/55R19	29.2″	−0.4%	9.3″	5.1″	19″
275/25R24	29.4″	+0.4%	10.8″	2.7″	24″
265/50R19	29.4″	+0.5%	10.4″	5.2″	19″
295/35R21	29.1″	−0.5%	11.6″	4.1″	21″
235/60R18	29.1″	−0.6%	9.3″	5.6″	18″
285/45R19	29.1″	−0.6%	11.2″	5.0″	19″
245/70R16	29.5″	+0.7%	9.6″	6.8″	16″
255/70R15	29.1″	−0.8%	10.0″	7.0″	15″
255/65R16	29.1″	−0.8%	10.0″	6.5″	16″

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.
75: Aspect ratio: the sidewall is 75% as tall as the tire is wide, 169 mm (6.6 in).
R: Radial construction, used by almost every modern tire.
16: Fits a 16-inch wheel.

225/75R16 is about 29.3 inches tall and 8.9 inches wide, on a 16-inch wheel, roughly a 29.3x8.9R16 in inch sizing.

Yes. At 29.3 inches it is sold and fitted as a 29-inch tire.

265/35R22, 265/40R21, 265/45R20 are the closest common sizes, all within 0.3% of its diameter, so the speedometer stays close to accurate.

245/75R16 is 4.0% taller, so at an indicated 60 mph you would really be doing 62.4 mph. Compare 225/75R16 and 245/75R16.

About 689 per mile (428 per km), from a 92.0-inch circumference.