185/55R13 in Inches

A 185/55R13 tire has a 21-inch diameter, a 7.3-inch width, and is designed for a 13-inch rim.

In high flotation terms, this tire is labeled as 21x7.3R13.

185/55R13 Tire Size
185/55R13 Tire Size in Inches
185/55R13 Tire Circumference
959.8 revs/mile

185/55R13 Tire Overview

21 inches
Wheel Diameter
13 inches
Tire Width
7.3 inches
66 inches
Sidewall Height
4 inches
959.8 per mile

What does 185/55R13 mean?

185/55R13 tire size meaning in inches

185/55R13 is a tire size with the following dimensions:

  • 185 is the width of the tire in millimeters. This number also indicates the appropriate width of the rim on which the tire should be mounted.
  • 55 is the aspect ratio, which is the ratio of the tire's height to its width. This affects the tire's handling and ride comfort
  • R indicates the tire's construction type, meaning it has a radial construction. This provides stability and precision to the tire.
  • 13 is the diameter of the wheel in inches, on which the tire is to be mounted.

185/55R13 Tire Conversion

Tire Diameter21 in533.7 mm
Section Width7.3 in185 mm
Rim Height13 in330 mm
Sidewall Height4 in101.8 mm
Circumference66 in1676.7 mm
Revolutions959.8 revs/mile
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FAQ About 185/55R13 Tire

How tall is a 185/55R13 tire?

The height (or diameter) of a 185/55R13 tire is 21 inches

How wide is a 185/55R13 tire?

The width of a 185/55R13 tire is 185 mm, which is about 7.3 inches.

What size rim fits a 185/55R13 tire?

A 185/55R13 tire fits on a rim that is 13 inches in diameter.

What does the 55 in a 185/55R13 tire mean?

The 55 in a 185/55R13 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 55% of its width.

Alternative Tire Sizes for 185/55R13

Typically, it's recommended to choose a tire with a diameter (height) within 3% of the original equipment manufacturer (OEM) tire size.

However, keep in mind that this is a general guideline and not an absolute rule.

Here are some tire sizes that are compatible with the 185/55R13:

Tire SizeDiameterRim
145/70R1321.0″ (Equal)13 x 3.5-5.0
225/45R1321.0″ (Equal)13 x 7.0-8.5
255/40R1321.0″ (Equal)13 x n/a
125/80R1320.9″ (-0.5%)13 x 3.0-4.0
135/70R1320.4″ (-2.9%)13 x 3.5-4.5
135/80R1321.5″ (2.4%)13 x 3.5-4.5
145/65R1320.4″ (-2.9%)13 x n/a
155/65R1320.9″ (-0.5%)13 x 4.5-5.5
155/70R1321.5″ (2.4%)13 x 4.0-5.0
165/60R1320.8″ (-1.0%)13 x 4.5-6.0
165/65R1321.4″ (1.9%)13 x 4.5-6.0
175/55R1320.6″ (-1.9%)13 x 5.0-6.0
175/60R1321.3″ (1.4%)13 x 5.0-6.0
195/55R1321.4″ (1.9%)13 x 5.5-7.0
205/50R1321.1″ (0.5%)13 x 5.5-7.5
215/50R1321.5″ (2.4%)13 x 5.5-8.5