165/45R16 in Inches

A 165/45R16 tire has a 21.8-inch diameter, a 6.5-inch width, and is designed for a 16-inch rim.

In high flotation terms, this tire is labeled as 21.8x6.5R16.

165/45R16 Tire Size
165/45R16 Tire Size in Inches
165/45R16 Tire Circumference
923.2 revs/mile

165/45R16 Tire Overview

21.8 inches
Wheel Diameter
16 inches
Tire Width
6.5 inches
68.6 inches
Sidewall Height
2.9 inches
923.2 per mile

What does 165/45R16 mean?

165/45R16 tire size meaning in inches

165/45R16 is a tire size with the following dimensions:

  • 165 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.
  • 16 is the diameter of the wheel in inches, on which the tire is to be mounted.

165/45R16 Tire Conversion

Tire Diameter21.8 in554.9 mm
Section Width6.5 in165 mm
Rim Height16 in406 mm
Sidewall Height2.9 in74.3 mm
Circumference68.6 in1743.3 mm
Revolutions923.2 revs/mile
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FAQ About 165/45R16 Tire

How tall is a 165/45R16 tire?

The height (or diameter) of a 165/45R16 tire is 21.8 inches

How wide is a 165/45R16 tire?

The width of a 165/45R16 tire is 165 mm, which is about 6.5 inches.

What size rim fits a 165/45R16 tire?

A 165/45R16 tire fits on a rim that is 16 inches in diameter.

What does the 45 in a 165/45R16 tire mean?

The 45 in a 165/45R16 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 45% of its width.

Alternative Tire Sizes for 165/45R16

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 165/45R16:

Tire SizeDiameterRim
115/70R1622.3″ (2.3%)16 x n/a
135/60R1622.4″ (2.8%)16 x n/a
165/40R1621.2″ (-2.8%)16 x 5.5-6.5
195/40R1622.1″ (1.4%)16 x 6.5-7.5
215/35R1621.9″ (0.5%)16 x 7.0-8.5