255/30R20 in Inches

A 255/30R20 tire has a 26-inch diameter, a 10-inch width, and is designed for a 20-inch rim.

In high flotation terms, this tire is labeled as 26x10R20.

255/30R20 Tire Size
10"
26"
255/30R20 Tire Size in Inches
255/30R20 Tire Circumference
81.8"
20"
3"
775 revs/mile

255/30R20 Tire Overview

Height
26 inches
Wheel Diameter
20 inches
Tire Width
10 inches
Circumference
81.8 inches
Sidewall Height
3 inches
Revolutions
775 per mile
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What does 255/30R20 mean?

255/30R20 tire size meaning in inches

255/30R20 is a tire size with the following dimensions:

  • 255 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.
  • 30 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.

255/30R20 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter26 in661 mm
Section Width10 in255 mm
Rim Height20 in508 mm
Sidewall Height3 in76.5 mm
Circumference81.8 in2076.6 mm
Revolutions775 revs/mile
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FAQ About 255/30R20 Tire

How tall is a 255/30R20 tire?

The height (or diameter) of a 255/30R20 tire is 26 inches

How wide is a 255/30R20 tire?

The width of a 255/30R20 tire is 255 mm, which is about 10 inches.

What size rim fits a 255/30R20 tire?

A 255/30R20 tire fits on a rim that is 20 inches in diameter.

What does the 30 in a 255/30R20 tire mean?

The 30 in a 255/30R20 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 30% of its width.

Alternative Tire Sizes for 255/30R20

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 255/30R20:

Tire SizeDiameterRim
305/25R2026.0″ (Equal)20 x 10.5-11.5
225/30R2025.3″ (-2.7%)20 x 8
225/35R2026.2″ (0.8%)20 x 7.5-9.0
235/30R2025.6″ (-1.5%)20 x 8.5
235/35R2026.5″ (1.9%)20 x 8.0-9.5
245/30R2025.8″ (-0.8%)20 x 8.0-9.0
265/30R2026.3″ (1.2%)20 x 9.0-10.0
275/25R2025.4″ (-2.3%)20 x 10
275/30R2026.5″ (1.9%)20 x 9.0-10.0
285/25R2025.6″ (-1.5%)20 x 10.5
285/30R2026.7″ (2.7%)20 x 9.5-10.5
295/25R2025.8″ (-0.8%)20 x 10.0-11.0
315/25R2026.2″ (0.8%)20 x 11.0-12.0
325/25R2026.4″ (1.5%)20 x 11.5-12.5
335/25R2026.6″ (2.3%)20 x 11.5-12.5