125/90R15 in Inches

A 125/90R15 tire has a 23.9-inch diameter, a 4.9-inch width, and is designed for a 15-inch rim.

In high flotation terms, this tire is labeled as 23.9x4.9R15.

125/90R15 Tire Size
4.9"
23.9"
125/90R15 Tire Size in Inches
125/90R15 Tire Circumference
75"
15"
4.4"
845.3 revs/mile

125/90R15 Tire Overview

Height
23.9 inches
Wheel Diameter
15 inches
Tire Width
4.9 inches
Circumference
75 inches
Sidewall Height
4.4 inches
Revolutions
845.3 per mile
Tirelib.com

What does 125/90R15 mean?

125/90R15 tire size meaning in inches

125/90R15 is a tire size with the following dimensions:

  • 125 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.
  • 90 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.
  • 15 is the diameter of the wheel in inches, on which the tire is to be mounted.

125/90R15 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter23.9 in606 mm
Section Width4.9 in125 mm
Rim Height15 in381 mm
Sidewall Height4.4 in112.5 mm
Circumference75 in1903.8 mm
Revolutions845.3 revs/mile
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FAQ About 125/90R15 Tire

How tall is a 125/90R15 tire?

The height (or diameter) of a 125/90R15 tire is 23.9 inches

How wide is a 125/90R15 tire?

The width of a 125/90R15 tire is 125 mm, which is about 4.9 inches.

What size rim fits a 125/90R15 tire?

A 125/90R15 tire fits on a rim that is 15 inches in diameter.

What does the 90 in a 125/90R15 tire mean?

The 90 in a 125/90R15 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 90% of its width.

Alternative Tire Sizes for 125/90R15

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 125/90R15:

Tire SizeDiameterRim
205/55R1523.9″ (Equal)15 x 5.5-7.5
225/50R1523.9″ (Equal)15 x 6.0-8.0
135/80R1523.5″ (-1.7%)15 x 3.5-4.5
135/90R1524.6″ (2.9%)15 x n/a
155/70R1523.5″ (-1.7%)15 x 4.0-5.0
165/65R1523.4″ (-2.1%)15 x 4.5-6.0
175/60R1523.3″ (-2.5%)15 x 5.0-6.0
175/65R1524.0″ (0.4%)15 x 5.0-6.0
175/70R1524.6″ (2.9%)15 x 4.5-6.0
185/60R1523.7″ (-0.8%)15 x 5.0-6.5
185/65R1524.5″ (2.5%)15 x 5.0-6.5
195/55R1523.4″ (-2.1%)15 x 5.5-7.0
195/60R1524.2″ (1.3%)15 x 5.5-7.0
215/50R1523.5″ (-1.7%)15 x 6.0-7.5
215/55R1524.3″ (1.7%)15 x 6.0-7.5
235/45R1523.3″ (-2.5%)15 x 7.5-9.0
235/50R1524.3″ (1.7%)15 x 6.5-8.5
245/50R1524.6″ (2.9%)15 x 6.5-7.5
255/45R1524.0″ (0.4%)15 x 8.0-9.5
285/40R1524.0″ (0.4%)15 x 9.5-11.0
345/35R1524.5″ (2.5%)15 x 11.5-13.5