185/70R13 tire size

A 185/70R13 tire is 23.2 inches (589 mm) tall and 7.3 inches (185 mm) wide, and fits a 13-inch wheel. In inch sizing it is about a 23.2x7.3R13.

Overall diameter23.20in589 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
195/60R14	23.2″	+0.1%	7.7″	4.6″	14″
165/70R14	23.1″	−0.4%	6.5″	4.5″	14″
185/55R15	23.0″	−0.8%	7.3″	4.0″	15″
165/80R13	23.4″	+0.8%	6.5″	5.2″	13″
175/65R14	23.0″	−1.0%	6.9″	4.5″	14″
195/55R15	23.4″	+1.1%	7.7″	4.2″	15″
185/65R14	23.5″	+1.2%	7.3″	4.7″	14″
155/80R13	22.8″	−1.9%	6.1″	4.9″	13″
175/70R14	23.6″	+1.9%	6.9″	4.8″	14″
185/60R14	22.7″	−2.0%	7.3″	4.4″	14″
195/50R16	23.7″	+2.1%	7.7″	3.8″	16″
195/50R15	22.7″	−2.2%	7.7″	3.8″	15″

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

185: Section width: 185 mm (7.3 in) from sidewall to sidewall.
70: Aspect ratio: the sidewall is 70% as tall as the tire is wide, 130 mm (5.1 in).
R: Radial construction, used by almost every modern tire.
13: Fits a 13-inch wheel.

185/70R13 is about 23.2 inches tall and 7.3 inches wide, on a 13-inch wheel, roughly a 23.2x7.3R13 in inch sizing.

Yes. At 23.2 inches it is sold and fitted as a 23-inch tire.

195/60R14, 165/70R14, 185/55R15 are the closest common sizes, all within 0.8% of its diameter, so the speedometer stays close to accurate.

165/80R13 is 0.8% taller, so at an indicated 60 mph you would really be doing 60.5 mph. Compare 185/70R13 and 165/80R13.

About 869 per mile (540 per km), from a 72.9-inch circumference.