305/65R17 In Inches – Tire Size & Wheel Fitment Guide

What tire size is 305/65R17 in Inches?

The 305/65R17 tire has an overall diameter of 32.6 inches, a section width of 12 inches, and can be mounted on 17 inches height of rim. The equivalent tire size in the high flotation system is 32.6x12R17.

	Inches	Millimeters
Tire Diameter	32.6	828.3
Section Width	12	305
Rim Height	17	432
Sidewall Height	7.8	198.3
Circumference	102.4	2602.2

12"

32.6"

102.4"

17"

7.8"

618.5 Revs/Mile

To make it clear, we'll break down each part of the 305/65R17 tire size to know what these numbers represent & how they may affect your tire's performance:

How big is a 305/65R17 tire?

A 305/65R17 tire has a height of 32.6 inches (828.3 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.

How wide is a 305/65R17 tire?

The 305/65R17 tire has a width of 12 inches (305 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.

You can put a slightly narrower or wider tire on a rim as long as it falls within the manufacturer's recommended tire width range.

305/65R17 sidewall height

The 305/65R17 has a sidewall height of 7.8 inches (198.3 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 305/65R17 tire?

You can mount the 305/65R17 tire on a rim with a height of 17 inches.

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

305/65R17 circumference

The 305/65R17 tire has a circumference of 102.4 inches (2602.2 mm), This is the measurement of the distance the tire travels in one revolution.

The tire circumference is important for your vehicle's overall performance, affecting its speedometer acceleration, accuracy and fuel efficiency.

305/65R17 Revolutions

The 305/65R17 performs 618.5 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.

Compatible Tire Sizes for 305/65R17

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 305/65R17: