What does 165/40R16 mean?
165/40R16 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.
- 40 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.
165/40R16 Tire Conversion
| Dimensions | Inches | Millimeters |
| Tire Diameter | 21.2 in | 538.4 mm |
| Section Width | 6.5 in | 165 mm |
| Rim Height | 16 in | 406 mm |
| Sidewall Height | 2.6 in | 66 mm |
| Circumference | 66.6 in | 1691.4 mm |
| Revolutions | 951.5 revs/mile | |
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FAQ About 165/40R16 Tire
How tall is a 165/40R16 tire?
The height (or diameter) of a 165/40R16 tire is 21.2 inches
How wide is a 165/40R16 tire?
The width of a 165/40R16 tire is 165 mm, which is about 6.5 inches.
What size rim fits a 165/40R16 tire?
A 165/40R16 tire fits on a rim that is 16 inches in diameter.
What does the 40 in a 165/40R16 tire mean?
The 40 in a 165/40R16 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 40% of its width.
Alternative Tire Sizes for 165/40R16
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 165/40R16:
| Tire Size | Diameter | Rim |
|---|---|---|
| 165/45R16 | 21.8″ (2.8%) | 16 x 5.0-6.0 |