175/55R13 in inches

How tall is a 175 55R13 tire?

When converted to inches, the equivalent of a 175/55R13 tire size is 20.6x6.9R13. It means that:

  • height overall (or diameter) is 20.6 inches
  • tread width is 6.9 inches
  • wheel diameter is 13 inches

Learn more

175/55R13 tire size in inches
175/55R13 tire size chart

175/55R13 tire size in inches

175/55R13 Height / overall diameter: 20.6 inches
Height / overall diameter
20.6 inches
175/55R13 Tread width: 6.9 inches
Tread width
6.9 inches
175/55R13 Sidewall: 3.8 inches
Sidewall
3.8 inches
175/55R13 Wheel diameter: 13 inches
Wheel diameter
13 inches
175/55R13 Circumference: 64.7 inches
Circumference
64.7 inches
175/55R13 Revolutions: 980 per mile
Revolutions
980 per mile

175/55R13 — what does it mean?

  • 175 stands for tread width in millimeters
  • 55 is an aspect ration between the tread width and the sidewall in percents
  • R means that the tire has a radial construction
  • 13 is a wheel diameter (or rim) in inches

175/55R13 tire code
175/55R13 tire code

How to convert 175 55R13 to inches?

First of all, we need to divide 175 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 6.9″. Then, 55% of the 6.9″ will result in 3.8″ sidewall.

To get the total height or tire diameter, we need to sum the 13″ rim diameter with two of the sidewall heights. It will result in a 20.6″ total tire diameter (or height).

For your convenience, below is a table for 175/55R13 conversion to inches:

Inches Metric
Overall diameter (height) 20.6″ 523 mm
Tread width 6.9″ 175 mm
Wheel diameter 13″ 523 mm
Sidewall height 3.8″ 96 mm
Circumference 64.7″ 1642 mm
Revolutions 980 / ml 609 / km

Alternatives to a 175/55R13 tire

If you're looking to upsize your 175 55R13 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
125/80R13 20.8″ 0.24% 4.9″ 13″
135/70R13 20.4″ -0.24% 5.3″ 13″
145/65R13 20.4″ -0.24% 5.7″ 13″
145/70R13 21″ 0.47% 5.7″ 13″
155/65R13 21″ 0.47% 6.1″ 13″
165/55R13 20.2″ -0.48% 6.5″ 13″
165/60R13 20.8″ 0.24% 6.5″ 13″
185/55R13 21″ 0.47% 7.3″ 13″
205/50R13 21.2″ 0.71% 8.1″ 13″
225/45R13 21″ 0.47% 8.9″ 13″