325/60R18 in Inches

A 325/60R18 tire has a 33.4-inch diameter, a 12.8-inch width, and is designed for a 18-inch rim.

In high flotation terms, this tire is labeled as 33.4x12.8R18.

325/60R18 Tire Size
12.8"
33.4"
325/60R18 Tire Size in Inches
325/60R18 Tire Circumference
104.8"
18"
7.7"
604.7 revs/mile

325/60R18 Tire Overview

Height
33.4 inches
Wheel Diameter
18 inches
Tire Width
12.8 inches
Circumference
104.8 inches
Sidewall Height
7.7 inches
Revolutions
604.7 per mile
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What does 325/60R18 mean?

325/60R18 tire size meaning in inches

325/60R18 is a tire size with the following dimensions:

  • 325 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.
  • 60 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.

325/60R18 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter33.4 in847.2 mm
Section Width12.8 in325 mm
Rim Height18 in457 mm
Sidewall Height7.7 in195 mm
Circumference104.8 in2661.6 mm
Revolutions604.7 revs/mile
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FAQ About 325/60R18 Tire

How tall is a 325/60R18 tire?

The height (or diameter) of a 325/60R18 tire is 33.4 inches

How wide is a 325/60R18 tire?

The width of a 325/60R18 tire is 325 mm, which is about 12.8 inches.

What size rim fits a 325/60R18 tire?

A 325/60R18 tire fits on a rim that is 18 inches in diameter.

What does the 60 in a 325/60R18 tire mean?

The 60 in a 325/60R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 60% of its width.


Alternative Tire Sizes for 325/60R18

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 325/60R18:

Tire SizeDiameterRim
245/75R1832.5″ (-2.7%)18 x 6.5-8.0
265/70R1832.6″ (-2.4%)18 x 7.0-9.0
275/70R1833.2″ (-0.6%)18 x 7.0-8.5
285/65R1832.6″ (-2.4%)18 x 8.0-10.0
285/70R1833.7″ (0.9%)18 x 7.5-9.5
295/65R1833.1″ (-0.9%)18 x 8.0-10.0
295/70R1834.3″ (2.7%)18 x 7.0-10.0
305/60R1832.4″ (-3.0%)18 x 8.5-11.0
305/65R1833.6″ (0.6%)18 x 8.5-11.0
345/60R1834.3″ (2.7%)18 x n/a
375/50R1832.8″ (-1.8%)18 x n/a