315/30R30 in Inches

A 315/30R30 tire has a 37.4-inch diameter, a 12.4-inch width, and is designed for a 30-inch rim.

In high flotation terms, this tire is labeled as 37.4x12.4R30.

315/30R30 Tire Size
315/30R30 Tire Size in Inches
315/30R30 Tire Circumference
538.7 revs/mile

315/30R30 Tire Overview

37.4 inches
Wheel Diameter
30 inches
Tire Width
12.4 inches
117.6 inches
Sidewall Height
3.7 inches
538.7 per mile

What does 315/30R30 mean?

315/30R30 tire size meaning in inches

315/30R30 is a tire size with the following dimensions:

  • 315 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.
  • 30 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.
  • 30 is the diameter of the wheel in inches, on which the tire is to be mounted.

315/30R30 Tire Conversion

Tire Diameter37.4 in951 mm
Section Width12.4 in315 mm
Rim Height30 in762 mm
Sidewall Height3.7 in94.5 mm
Circumference117.6 in2987.7 mm
Revolutions538.7 revs/mile
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FAQ About 315/30R30 Tire

How tall is a 315/30R30 tire?

The height (or diameter) of a 315/30R30 tire is 37.4 inches

How wide is a 315/30R30 tire?

The width of a 315/30R30 tire is 315 mm, which is about 12.4 inches.

What size rim fits a 315/30R30 tire?

A 315/30R30 tire fits on a rim that is 30 inches in diameter.

What does the 30 in a 315/30R30 tire mean?

The 30 in a 315/30R30 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 30% of its width.

Alternative Tire Sizes for 315/30R30

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 315/30R30:

Tire SizeDiameterRim