225/40R17 in inches

How tall is a 225 40R17 tire?

When converted to inches, the equivalent of a 225/40R17 tire size is 24x8.9R17. It means that:

  • height overall (or diameter) is 24 inches
  • tread width is 8.9 inches
  • wheel diameter is 17 inches

Learn more

225/40R17 tire size in inches
225/40R17 tire size chart

225/40R17 tire size in inches

225/40R17 Height / overall diameter: 24 inches
Height / overall diameter
24 inches
225/40R17 Tread width: 8.9 inches
Tread width
8.9 inches
225/40R17 Sidewall: 3.5 inches
Sidewall
3.5 inches
225/40R17 Wheel diameter: 17 inches
Wheel diameter
17 inches
225/40R17 Circumference: 75.4 inches
Circumference
75.4 inches
225/40R17 Revolutions: 840 per mile
Revolutions
840 per mile

225/40R17 — what does it mean?

  • 225 stands for tread width in millimeters
  • 40 is an aspect ration between the tread width and the sidewall in percents
  • R means that the tire has a radial construction
  • 17 is a wheel diameter (or rim) in inches

225/40R17 tire code
225/40R17 tire code

How to convert 225 40R17 to inches?

First of all, we need to divide 225 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 8.9″. Then, 40% of the 8.9″ will result in 3.5″ sidewall.

To get the total height or tire diameter, we need to sum the 17″ rim diameter with two of the sidewall heights. It will result in a 24″ total tire diameter (or height).

For your convenience, below is a table for 225/40R17 conversion to inches:

Inches Metric
Overall diameter (height) 24″ 610 mm
Tread width 8.9″ 225 mm
Wheel diameter 17″ 610 mm
Sidewall height 3.5″ 90 mm
Circumference 75.4″ 1915 mm
Revolutions 840 / ml 522 / km

Alternatives to a 225/40R17 tire

If you're looking to upsize your 225 40R17 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
125/70R17 24″ 0% 4.9″ 17″
135/70R17 24.4″ 0.41% 5.3″ 17″
175/55R17 24.6″ 0.61% 6.9″ 17″
185/50R17 24.4″ 0.41% 7.3″ 17″
195/45R17 24″ 0% 7.7″ 17″
195/50R17 24.8″ 0.81% 7.7″ 17″
205/40R17 23.4″ -0.66% 8.1″ 17″
205/45R17 24.2″ 0.2% 8.1″ 17″
215/40R17 23.8″ -0.21% 8.5″ 17″
215/45R17 24.6″ 0.61% 8.5″ 17″