225/35R18 in Inches

A 225/35R18 tire has a 24.2-inch diameter, a 8.9-inch width, and is designed for a 18-inch rim.

In high flotation terms, this tire is labeled as 24.2x8.9R18.

225/35R18 Tire Size
8.9"
24.2"
225/35R18 Tire Size in Inches
225/35R18 Tire Circumference
76"
18"
3.1"
833.4 revs/mile

225/35R18 Tire Overview

Height
24.2 inches
Wheel Diameter
18 inches
Tire Width
8.9 inches
Circumference
76 inches
Sidewall Height
3.1 inches
Revolutions
833.4 per mile
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What does 225/35R18 mean?

225/35R18 tire size meaning in inches

225/35R18 is a tire size with the following dimensions:

  • 225 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.
  • 35 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.
  • 18 is the diameter of the wheel in inches, on which the tire is to be mounted.

225/35R18 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter24.2 in614.7 mm
Section Width8.9 in225 mm
Rim Height18 in457 mm
Sidewall Height3.1 in78.8 mm
Circumference76 in1931.1 mm
Revolutions833.4 revs/mile
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FAQ About 225/35R18 Tire

How tall is a 225/35R18 tire?

The height (or diameter) of a 225/35R18 tire is 24.2 inches

How wide is a 225/35R18 tire?

The width of a 225/35R18 tire is 225 mm, which is about 8.9 inches.

What size rim fits a 225/35R18 tire?

A 225/35R18 tire fits on a rim that is 18 inches in diameter.

What does the 35 in a 225/35R18 tire mean?

The 35 in a 225/35R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 35% of its width.

Alternative Tire Sizes for 225/35R18

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 225/35R18:

Tire SizeDiameterRim
175/45R1824.2″ (Equal)18 x n/a
125/60R1823.9″ (-1.2%)18 x n/a
125/70R1824.9″ (2.9%)18 x n/a
135/60R1824.4″ (0.8%)18 x n/a
205/35R1823.6″ (-2.5%)18 x 7.0-8.0
205/40R1824.5″ (1.2%)18 x 7.0-8.0
215/35R1823.9″ (-1.2%)18 x 7.0-8.5
215/40R1824.8″ (2.5%)18 x 7.0-8.5
235/30R1823.6″ (-2.5%)18 x n/a
235/35R1824.5″ (1.2%)18 x 8.0-9.5
245/30R1823.8″ (-1.7%)18 x 8.0-9.0
245/35R1824.8″ (2.5%)18 x 8.0-9.5
255/30R1824.0″ (-0.8%)18 x 8.5-9.5
265/30R1824.3″ (0.4%)18 x 9.0-10.0
285/30R1824.7″ (2.1%)18 x 9.5-10.5