305/45R17 in Inches

A 305/45R17 tire has a 27.8-inch diameter, a 12-inch width, and is designed for a 17-inch rim.

In high flotation terms, this tire is labeled as 27.8x12R17.

305/45R17 Tire Size
305/45R17 Tire Size in Inches
305/45R17 Tire Circumference
725.3 revs/mile

305/45R17 Tire Overview

27.8 inches
Wheel Diameter
17 inches
Tire Width
12 inches
87.4 inches
Sidewall Height
5.4 inches
725.3 per mile

What does 305/45R17 mean?

305/45R17 tire size meaning in inches

305/45R17 is a tire size with the following dimensions:

  • 305 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.
  • 17 is the diameter of the wheel in inches, on which the tire is to be mounted.

305/45R17 Tire Conversion

Tire Diameter27.8 in706.3 mm
Section Width12 in305 mm
Rim Height17 in431 mm
Sidewall Height5.4 in137.3 mm
Circumference87.4 in2218.9 mm
Revolutions725.3 revs/mile
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FAQ About 305/45R17 Tire

How tall is a 305/45R17 tire?

The height (or diameter) of a 305/45R17 tire is 27.8 inches

How wide is a 305/45R17 tire?

The width of a 305/45R17 tire is 305 mm, which is about 12 inches.

What size rim fits a 305/45R17 tire?

A 305/45R17 tire fits on a rim that is 17 inches in diameter.

What does the 45 in a 305/45R17 tire mean?

The 45 in a 305/45R17 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 45% of its width.

Alternative Tire Sizes for 305/45R17

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 305/45R17:

Tire SizeDiameterRim
275/50R1727.8″ (Equal)17 x 7.5-9.5
145/90R1727.3″ (-1.8%)17 x n/a
155/90R1728.0″ (0.7%)17 x n/a
165/80R1727.4″ (-1.4%)17 x n/a
205/65R1727.5″ (-1.1%)17 x 5.5-7.5
215/60R1727.2″ (-2.2%)17 x 6.0-7.5
215/65R1728.0″ (0.7%)17 x 6.0-7.5
225/60R1727.6″ (-0.7%)17 x 6.0-8.0
225/65R1728.5″ (2.5%)17 x 6.0-8.0
235/55R1727.2″ (-2.2%)17 x 6.5-8.5
235/60R1728.1″ (1.1%)17 x 6.5-8.5
245/55R1727.6″ (-0.7%)17 x 7.0-8.5
245/60R1728.6″ (2.9%)17 x 7.0-8.5
255/50R1727.0″ (-2.9%)17 x 7.0-9.0
255/55R1728.0″ (0.7%)17 x 7.0-9.0
265/55R1728.5″ (2.5%)17 x 7.5-9.5
295/45R1727.5″ (-1.1%)17 x n/a
315/45R1728.2″ (1.4%)17 x 10.0-12.0
345/40R1727.9″ (0.4%)17 x 11.5-13.5