305/35R18 in Inches

A 305/35R18 tire has a 26.4-inch diameter, a 12-inch width, and is designed for a 18-inch rim.

In high flotation terms, this tire is labeled as 26.4x12R18.

305/35R18 Tire Size
305/35R18 Tire Size in Inches
305/35R18 Tire Circumference
763.8 revs/mile

305/35R18 Tire Overview

26.4 inches
Wheel Diameter
18 inches
Tire Width
12 inches
83 inches
Sidewall Height
4.2 inches
763.8 per mile

What does 305/35R18 mean?

305/35R18 tire size meaning in inches

305/35R18 is a tire size with the following dimensions:

  • 305 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.

305/35R18 Tire Conversion

Tire Diameter26.4 in670.7 mm
Section Width12 in305 mm
Rim Height18 in457 mm
Sidewall Height4.2 in106.8 mm
Circumference83 in2107.1 mm
Revolutions763.8 revs/mile
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FAQ About 305/35R18 Tire

How tall is a 305/35R18 tire?

The height (or diameter) of a 305/35R18 tire is 26.4 inches

How wide is a 305/35R18 tire?

The width of a 305/35R18 tire is 305 mm, which is about 12 inches.

What size rim fits a 305/35R18 tire?

A 305/35R18 tire fits on a rim that is 18 inches in diameter.

What does the 35 in a 305/35R18 tire mean?

The 35 in a 305/35R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 35% of its width.

Alternative Tire Sizes for 305/35R18

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 305/35R18:

Tire SizeDiameterRim
135/80R1826.5″ (0.4%)18 x n/a
145/70R1826.0″ (-1.5%)18 x n/a
145/80R1827.1″ (2.7%)18 x n/a
155/70R1826.5″ (0.4%)18 x n/a
165/70R1827.1″ (2.7%)18 x n/a
185/55R1826.0″ (-1.5%)18 x n/a
205/50R1826.1″ (-1.1%)18 x n/a
205/55R1826.9″ (1.9%)18 x 5.5-7.5
215/50R1826.5″ (0.4%)18 x 6.0-7.5
225/45R1826.0″ (-1.5%)18 x 7.0-8.5
225/50R1826.9″ (1.9%)18 x 6.0-8.0
235/45R1826.3″ (-0.4%)18 x 7.5-9.0
245/40R1825.7″ (-2.7%)18 x 8.0-9.5
245/45R1826.7″ (1.1%)18 x 7.5-9.0
255/40R1826.0″ (-1.5%)18 x 8.5-10.0
255/45R1827.0″ (2.3%)18 x 8.0-9.5
265/40R1826.3″ (-0.4%)18 x 9.0-10.5
275/40R1826.7″ (1.1%)18 x 9.0-11.0
285/35R1825.9″ (-1.9%)18 x 9.5-11.0
285/40R1827.0″ (2.3%)18 x 9.5-11.0
295/35R1826.1″ (-1.1%)18 x 10.0-11.5
315/35R1826.7″ (1.1%)18 x 10.5-12.5
325/35R1827.0″ (2.3%)18 x 11.0-13.0
335/30R1825.9″ (-1.9%)18 x 11.5-12.5
345/30R1826.1″ (-1.1%)18 x 12.0-14.0