235/70R16 tire size

A 235/70R16 tire is 29.0 inches (735 mm) tall and 9.3 inches (235 mm) wide, and fits a 16-inch wheel. In inch sizing it is about a 29.0x9.3R16.

Overall diameter28.95in735 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
235/75R15	28.9″	−0.3%	9.3″	6.9″	15″
235/65R17	29.0″	+0.3%	9.3″	6.0″	17″
255/40R21	29.0″	+0.3%	10.0″	4.0″	21″
255/45R20	29.0″	+0.3%	10.0″	4.5″	20″
255/50R19	29.0″	+0.3%	10.0″	5.0″	19″
255/55R18	29.0″	+0.3%	10.0″	5.5″	18″
255/65R16	29.1″	+0.3%	10.0″	6.5″	16″
285/35R21	28.9″	−0.3%	11.2″	3.9″	21″
255/70R15	29.1″	+0.4%	10.0″	7.0″	15″
285/45R19	29.1″	+0.5%	11.2″	5.0″	19″
235/60R18	29.1″	+0.5%	9.3″	5.6″	18″
295/35R21	29.1″	+0.6%	11.6″	4.1″	21″

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

235: Section width: 235 mm (9.3 in) from sidewall to sidewall.
70: Aspect ratio: the sidewall is 70% as tall as the tire is wide, 165 mm (6.5 in).
R: Radial construction, used by almost every modern tire.
16: Fits a 16-inch wheel.

235/70R16 is about 29.0 inches tall and 9.3 inches wide, on a 16-inch wheel, roughly a 29.0x9.3R16 in inch sizing.

Yes. At 29.0 inches it is sold and fitted as a 29-inch tire.

235/75R15, 235/65R17, 255/40R21 are the closest common sizes, all within 0.3% of its diameter, so the speedometer stays close to accurate.

235/75R16 is 3.2% taller, so at an indicated 60 mph you would really be doing 61.9 mph. Compare 235/70R16 and 235/75R16.

About 697 per mile (433 per km), from a 91.0-inch circumference.