135/70R18 in Inches

A 135/70R18 tire has a 25.4-inch diameter, a 5.3-inch width, and is designed for a 18-inch rim.

In high flotation terms, this tire is labeled as 25.4x5.3R18.

135/70R18 Tire Size
5.3"
25.4"
135/70R18 Tire Size in Inches
135/70R18 Tire Circumference
79.9"
18"
3.7"
792.7 revs/mile

135/70R18 Tire Overview

Height
25.4 inches
Wheel Diameter
18 inches
Tire Width
5.3 inches
Circumference
79.9 inches
Sidewall Height
3.7 inches
Revolutions
792.7 per mile
Tirelib.com

What does 135/70R18 mean?

135/70R18 tire size meaning in inches

135/70R18 is a tire size with the following dimensions:

  • 135 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.
  • 70 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.

135/70R18 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter25.4 in646.2 mm
Section Width5.3 in135 mm
Rim Height18 in457 mm
Sidewall Height3.7 in94.5 mm
Circumference79.9 in2030.1 mm
Revolutions792.7 revs/mile
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FAQ About 135/70R18 Tire

How tall is a 135/70R18 tire?

The height (or diameter) of a 135/70R18 tire is 25.4 inches

How wide is a 135/70R18 tire?

The width of a 135/70R18 tire is 135 mm, which is about 5.3 inches.

What size rim fits a 135/70R18 tire?

A 135/70R18 tire fits on a rim that is 18 inches in diameter.

What does the 70 in a 135/70R18 tire mean?

The 70 in a 135/70R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 70% of its width.

Alternative Tire Sizes for 135/70R18

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 135/70R18:

Tire SizeDiameterRim
145/65R1825.4″ (Equal)18 x n/a
235/40R1825.4″ (Equal)18 x 8.0-9.5
315/30R1825.4″ (Equal)18 x 10.5-11.5
125/70R1824.9″ (-2.0%)18 x n/a
145/70R1826.0″ (2.4%)18 x n/a
155/60R1825.3″ (-0.4%)18 x n/a
185/55R1826.0″ (2.4%)18 x n/a
205/45R1825.3″ (-0.4%)18 x 6.5-7.5
205/50R1826.1″ (2.8%)18 x n/a
215/40R1824.8″ (-2.4%)18 x 7.0-8.5
215/45R1825.6″ (0.8%)18 x 7.0-8.0
225/40R1825.1″ (-1.2%)18 x 7.5-9.0
225/45R1826.0″ (2.4%)18 x 7.0-8.5
245/35R1824.8″ (-2.4%)18 x 8.0-9.5
245/40R1825.7″ (1.2%)18 x 8.0-9.5
255/35R1825.0″ (-1.6%)18 x 8.5-10.0
255/40R1826.0″ (2.4%)18 x 8.5-10.0
265/35R1825.3″ (-0.4%)18 x 9.0-10.5
275/35R1825.6″ (0.8%)18 x 9.0-11.0
285/30R1824.7″ (-2.8%)18 x 9.5-10.5
285/35R1825.9″ (2.0%)18 x 9.5-11.0
295/30R1825.0″ (-1.6%)18 x 10.0-11.0
295/35R1826.1″ (2.8%)18 x 10.0-11.5
305/30R1825.2″ (-0.8%)18 x 10.5-11.5
335/30R1825.9″ (2.0%)18 x 11.5-12.5
345/30R1826.1″ (2.8%)18 x 12.0-14.0