225/30R20 in Inches

Tire size 225/30R20 refers to the tire size in numbers and letters such as the first number “225” indicates the tire width in millimeters, the second number “30” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A 225/30R20 tire in inches can be described as a tire with a width of about 8.9 inches, a sidewall height of about 2.7 inches, and it fits on a 20-inch wheel.

Converting 225/30R20 in Inches

225/30R20 inches mm
Tire Diameter 25.4 inches 644 mm
Tread Width 8.9 inches 225 mm
Rim Diameter 20 inches 508 mm
Sidewall Height 2.7 inches 68 mm
Circumference 79.8 inches 2022 mm
Revolutions 794 per mile 495 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

225/30R20 Alternate Tire Size

Tire Size Overall Diameter Difference
215/30R20 25.1″ (638 mm) -0.9%
275/25R20 25.4″ (646 mm) 0.3%
235/30R20 25.6″ (650 mm) 0.9%
285/25R20 25.6″ (650 mm) 0.9%
245/30R20 25.8″ (656 mm) 1.9%
295/25R20 25.8″ (656 mm) 1.9%
305/25R20 26″ (660 mm) 2.5%
255/30R20 26.1″ (662 mm) 2.8%

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