305/40R23 in Inches

Tire size 305/40R23 refers to the tire size in numbers and letters such as the first number “305” 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 305/40R23 tire in inches can be described as a tire with a width of about 12 inches, a sidewall height of about 4.8 inches, and it fits on a 23-inch wheel.

Converting 305/40R23 in Inches

305/40R23 inches mm
Tire Diameter 32.6 inches 828 mm
Tread Width 12 inches 305 mm
Rim Diameter 23 inches 584 mm
Sidewall Height 4.8 inches 122 mm
Circumference 102.4 inches 2600 mm
Revolutions 619 per mile 385 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
Circumference
Revolutions

305/40R23 Alternate Tire Size

Tire Size Overall Diameter Difference
275/40R23 31.7″ (804 mm) -2.9%
285/35R24 31.9″ (810 mm) -2.2%
335/30R24 32″ (812 mm) -1.9%
325/35R23 32″ (812 mm) -1.9%
405/25R24 32″ (812 mm) -1.9%
285/40R23 32″ (812 mm) -1.9%
295/35R24 32.1″ (816 mm) -1.4%
305/35R24 32.4″ (824 mm) -0.5%
315/35R24 32.7″ (830 mm) 0.2%
285/40R24 33″ (838 mm) 1.2%
295/40R24 33.3″ (846 mm) 2.2%

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