175/50R13 tire size

A 175/50R13 tire is 19.89 inches (505.2 mm) tall, 6.89 in (175 mm) wide and fits a 13-inch wheel. In inch notation it is roughly a 19.9x6.9R13.

Compare 175/50R13 with another size

Current size

New size

Speed in mphkm/h

+1.29%

60 mph on the speedometer = 60.8 mph actual

Within the ±3 % diameter range most tire fitters accept.

175/50R13 165/55R13

	Current	New	Difference	%
Diameter	19.89 in	20.15 in	+0.26 in	+1.29%
Diameter	505.2 mm	511.7 mm	+6.5 mm	+1.29%
Width	6.89 in	6.50 in	−0.39 in	−5.71%
Width	175.0 mm	165.0 mm	−10.0 mm	−5.71%
Sidewall	3.44 in	3.57 in	+0.13 in	+3.71%
Sidewall	87.5 mm	90.8 mm	+3.3 mm	+3.71%
Circumference	62.49 in	63.29 in	+0.80 in	+1.29%
Revs per mile	1,014.0	1,001.1	−12.9	−1.27%

Sizes in use within ±3 % of the overall diameter of 175/50R13:

175 — section width in millimetres (6.89 in).
50 — aspect ratio: the sidewall is 50 % of the width, 87.5 mm.
R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
13 — fits a 13-inch diameter wheel.

The load index and speed rating (for example 91V) follow the size on the sidewall. They must meet at least the values on your vehicle's tire placard.