375/45R20 in Inches

A 375/45R20 tire has a 33.3-inch diameter, a 14.8-inch width, and is designed for a 20-inch rim.

In high flotation terms, this tire is labeled as 33.3x14.8R20.

375/45R20 Tire Size
375/45R20 Tire Size in Inches
375/45R20 Tire Circumference
605.9 revs/mile

375/45R20 Tire Overview

33.3 inches
Wheel Diameter
20 inches
Tire Width
14.8 inches
104.6 inches
Sidewall Height
6.6 inches
605.9 per mile

What does 375/45R20 mean?

375/45R20 tire size meaning in inches

375/45R20 is a tire size with the following dimensions:

  • 375 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.
  • 45 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.
  • 20 is the diameter of the wheel in inches, on which the tire is to be mounted.

375/45R20 Tire Conversion

Tire Diameter33.3 in845.5 mm
Section Width14.8 in375 mm
Rim Height20 in508 mm
Sidewall Height6.6 in168.8 mm
Circumference104.6 in2656.2 mm
Revolutions605.9 revs/mile
Not the tire size you are searching for? Try our Tire Size Calculator.

FAQ About 375/45R20 Tire

How tall is a 375/45R20 tire?

The height (or diameter) of a 375/45R20 tire is 33.3 inches

How wide is a 375/45R20 tire?

The width of a 375/45R20 tire is 375 mm, which is about 14.8 inches.

What size rim fits a 375/45R20 tire?

A 375/45R20 tire fits on a rim that is 20 inches in diameter.

What does the 45 in a 375/45R20 tire mean?

The 45 in a 375/45R20 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 45% of its width.

Alternative Tire Sizes for 375/45R20

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 375/45R20:

Tire SizeDiameterRim
265/60R2032.5″ (-2.4%)20 x 7.5-9.5
275/60R2033.0″ (-0.9%)20 x 7.5-9.5
275/65R2034.1″ (2.4%)20 x 7.0-9.5
285/60R2033.5″ (0.6%)20 x 8.0-10.0
295/55R2032.8″ (-1.5%)20 x 8.0-10.0
295/60R2033.9″ (1.8%)20 x 8.0-10.0
305/55R2033.2″ (-0.3%)20 x 8.5-10.0
315/50R2032.4″ (-2.7%)20 x 8.5-11.0
325/50R2032.8″ (-1.5%)20 x 9.0-11.5
355/50R2034.0″ (2.1%)20 x 10.0-11.5