305/50R15 in Inches

A 305/50R15 tire has a 27-inch diameter, a 12-inch width, and is designed for a 15-inch rim.

In high flotation terms, this tire is labeled as 27x12R15.

305/50R15 Tire Size
12"
27"
305/50R15 Tire Size in Inches
305/50R15 Tire Circumference
84.8"
15"
6"
746.7 revs/mile

305/50R15 Tire Overview

Height
27 inches
Wheel Diameter
15 inches
Tire Width
12 inches
Circumference
84.8 inches
Sidewall Height
6 inches
Revolutions
746.7 per mile
Tirelib.com

What does 305/50R15 mean?

305/50R15 tire size meaning in inches

305/50R15 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.
  • 50 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.

305/50R15 Tire Conversion

DimensionsInchesMillimeters
Tire Diameter27 in686 mm
Section Width12 in305 mm
Rim Height15 in381 mm
Sidewall Height6 in152.5 mm
Circumference84.8 in2155.1 mm
Revolutions746.7 revs/mile
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FAQ About 305/50R15 Tire

How tall is a 305/50R15 tire?

The height (or diameter) of a 305/50R15 tire is 27 inches

How wide is a 305/50R15 tire?

The width of a 305/50R15 tire is 305 mm, which is about 12 inches.

What size rim fits a 305/50R15 tire?

A 305/50R15 tire fits on a rim that is 15 inches in diameter.

What does the 50 in a 305/50R15 tire mean?

The 50 in a 305/50R15 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 50% of its width.


Alternative Tire Sizes for 305/50R15

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 305/50R15:

Tire SizeDiameterRim
235/65R1527.0″ (Equal)15 x 6.5-n/a
255/60R1527.0″ (Equal)15 x 7.0-9.0
185/80R1526.7″ (-1.1%)15 x 4.5-6.0
195/75R1526.5″ (-1.9%)15 x 5.0-7.0
195/80R1527.3″ (1.1%)15 x 5.0-6.5
205/70R1526.3″ (-2.6%)15 x 5.0-7.0
205/75R1527.1″ (0.4%)15 x 5.0-7.0
215/70R1526.9″ (-0.4%)15 x 5.5-7.0
215/75R1527.7″ (2.6%)15 x 5.5-7.0
225/65R1526.5″ (-1.9%)15 x 6.0-8.0
225/70R1527.4″ (1.5%)15 x 6.0-7.5
245/60R1526.6″ (-1.5%)15 x 7.0-8.5
245/65R1527.5″ (1.9%)15 x n/a
265/60R1527.5″ (1.9%)15 x n/a
275/55R1526.9″ (-0.4%)15 x 7.5-9.5
285/50R1526.2″ (-3.0%)15 x 8.0-10.0
295/50R1526.6″ (-1.5%)15 x 8.0-10.5
295/55R1527.8″ (3.0%)15 x 8.0-10.5
325/50R1527.8″ (3.0%)15 x 9.0-11.0