325/25R20 In Inches – Tire Size & Rim Fitment Guide

What size tire is 325/25R20 in Inches?

The 325/25R20 tire has an overall diameter of 26.4 inches, a section width of 12.8 inches, and can be mounted on 20 x 11.5-12.5 inches rim. The equivalent tire size in the high flotation system is 26.4x12.8R20.

	Inches	Millimeters
Tire Diameter	26.4	670.5
Section Width	12.8	325
Rim Height	20	508
Sidewall Height	3.2	81.3
Circumference	82.9	2106.4

12.8"

26.4"

82.9"

20"

3.2"

764 Revs/Mile

To easy understanding, let us break down each component of the 325/25R20 tire size to know what these numbers represent and how they may affect your vehicle's performance:

How tall is a 325/25R20 tire?

A 325/25R20 tire has a height of 26.4 inches (670.5 mm). This is the measurement from the bottom to the highest point at the top of a tire through its exact center when inflated and no load.

How wide is a 325/25R20 tire?

The 325/25R20 has a width of 12.8 inches (325 mm). This is the tire measurement at its thickest point, the distance between the inner sidewall’s and the outer sidewall’s widest point, also known as section width or tread width.

325/25R20 sidewall height

The sidewall height of a 325/25R20 is 3.2 inches (81.3 mm). It’s measured from the rim to the outer edge of the tire's tread, expressed as a percentage of tire width.

What size rim do I need for 325/25R20 tire?

You can put on a rim with a height of 20 inches and a rim width ranging from 11.5-12.5 inches for a 325/25R20 tire. (Based on recommendations of The Tire and Rim Association (TRA))

Putting very wide tires on narrow rims or vice versa can result in reduced performance of the tire.

325/25R20 circumference

The 325/25R20 tire has a circumference of 82.9 inches (2106.4 mm), This is the measurement of the distance the tire covers in one full rotation.

The tire circumference plays a crucial role in your vehicle's overall performance, affecting its speedometer accuracy, acceleration and fuel efficiency.

325/25R20 Revolutions

The 325/25R20 performs 764 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.

Alternative Tire Sizes for 325/25R20

As a rule, you can replace the tire within a 3% difference in tire diameter (height) of the OEM tire size. However, it should be considered as a general guideline, not a hard and fast rule. Here is a list of compatible tire sizes for 325/25R20: