165/40R16 in Inches

Tire size 165/40R16 refers to the tire size in numbers and letters such as the first number “165” indicates the tire width in millimeters, the second number “40” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A 165/40R16 tire in inches can be described as a tire with a width of about 6.5 inches, a sidewall height of about 2.6 inches, and it fits on a 16-inch wheel.

Converting 165/40R16 in Inches

165/40R16 inches mm
Tire Diameter 21.2 inches 538 mm
Tread Width 6.5 inches 165 mm
Rim Diameter 16 inches 406 mm
Sidewall Height 2.6 inches 66 mm
Circumference 66.6 inches 1689 mm
Revolutions 951 per mile 592 per km

Tire Size Calculator

The Tire Size Calculator is a convenient online tool that helps determine the correct tire dimensions for a vehicle, ensuring optimal performance and compatibility.

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height

165/40R16 Alternate Tire Size

Tire Size Overall Diameter Difference
165/45R16 21.8″ (554 mm) 3%

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