245/60R18 In Inches – Tire Size & Wheel Fitment Guide

What size tire is 245/60R18 in Inches?

The 245/60R18 tire has an overall diameter of 29.6 inches, a section width of 9.6 inches, and can be mounted on 18 x 7.0-8.5 inches rim. The equivalent tire size in the high flotation system is 29.6x9.6R18.

	Inches	Millimeters
Tire Diameter	29.6	751.2
Section Width	9.6	245
Rim Height	18	457
Sidewall Height	5.8	147
Circumference	92.9	2360

9.6"

29.6"

92.9"

18"

5.8"

681.9 Revs/Mile

To easy understanding, let us break down each component of the 245/60R18 tire size to know what these numbers represent and how they may affect your vehicle's performance:

How tall is a 245/60R18 tire?

The 245/60R18 tire has a width of 9.6 inches (245 mm). This is the measurement at its thickest point, the distance between the outer sidewall and the inner sidewall’s widest point, also called as tread width or section width.

How wide is a 245/60R18 tire?

The 245/60R18 tire has a height of 29.6 inches (751.2 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 unloaded.

245/60R18 sidewall height

The 245/60R18 has a sidewall height of 5.8 inches (147 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 you need for 245/60R18 tire?

You can mount the 245/60R18 tire on a rim with a height of 18 inches and a rim width ranging from 7.0-8.5 inches. (Based on recommendations of The Tire and Rim Association (TRA))

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

245/60R18 circumference

The 245/60R18 tire has a circumference of 92.9 inches (2360 mm), This is the measurement of the distance the tire travels in one revolution.

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

245/60R18 Revolutions

The 245/60R18 performs 681.9 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.

Replacement Tire Sizes for 245/60R18

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 245/60R18: