235/55R20 in Inches

A 235/55R20 tire has a 30.2-inch diameter, a 9.3-inch width, and is designed for a 20-inch rim.

In high flotation terms, this tire is labeled as 30.2x9.3R20.

235/55R20 Tire Size
9.3"
30.2"
235/55R20 Tire Size in Inches
235/55R20 Tire Circumference
94.8"
20"
5.1"
668.3 revs/mile

235/55R20 Tire Overview

Height
30.2 inches
Wheel Diameter
20 inches
Tire Width
9.3 inches
Circumference
94.8 inches
Sidewall Height
5.1 inches
Revolutions
668.3 per mile
Tirelib.com

What does 235/55R20 mean?

235/55R20 tire size meaning in inches

235/55R20 is a tire size with the following dimensions:

  • 235 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.
  • 20 is the diameter of the wheel in inches, on which the tire is to be mounted.

235/55R20 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter30.2 in766.5 mm
Section Width9.3 in235 mm
Rim Height20 in508 mm
Sidewall Height5.1 in129.3 mm
Circumference94.8 in2408 mm
Revolutions668.3 revs/mile
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FAQ About 235/55R20 Tire

How tall is a 235/55R20 tire?

The height (or diameter) of a 235/55R20 tire is 30.2 inches

How wide is a 235/55R20 tire?

The width of a 235/55R20 tire is 235 mm, which is about 9.3 inches.

What size rim fits a 235/55R20 tire?

A 235/55R20 tire fits on a rim that is 20 inches in diameter.

What does the 55 in a 235/55R20 tire mean?

The 55 in a 235/55R20 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 55% of its width.

Alternative Tire Sizes for 235/55R20

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 235/55R20:

Tire SizeDiameterRim
235/50R2029.3″ (-3.0%)20 x 6.5-8.5
235/60R2031.1″ (3.0%)20 x 6.5-8.5
245/50R2029.6″ (-2.0%)20 x 7.0-8.5
255/50R2030.0″ (-0.7%)20 x 7.0-9.0
255/55R2031.0″ (2.6%)20 x 7.0-9.0
265/45R2029.4″ (-2.6%)20 x 8.5-10.0
265/50R2030.4″ (0.7%)20 x 7.5-9.5
275/45R2029.7″ (-1.7%)20 x 8.5-10.5
275/50R2030.8″ (2.0%)20 x 7.5-9.5
285/45R2030.1″ (-0.3%)20 x 9.0-10.5
295/40R2029.3″ (-3.0%)20 x 10.0-11.5
295/45R2030.5″ (1.0%)20 x 9.5-11.0
305/40R2029.6″ (-2.0%)20 x 10.0-12.0
305/45R2030.8″ (2.0%)20 x 9.5-11.5