P235/60R18 in inches

How tall is a P235 60R18 tire?

When converted to inches, the equivalent of a P235/60R18 tire size is 29.2x9.3R18. It means that:

  • height overall (or diameter) is 29.2 inches
  • tread width is 9.3 inches
  • wheel diameter is 18 inches

Learn more

P235/60R18 tire size in inches
P235/60R18 tire size chart

P235/60R18 tire size in inches

P235/60R18 Height / overall diameter: 29.2 inches
Height / overall diameter
29.2 inches
P235/60R18 Tread width: 9.3 inches
Tread width
9.3 inches
P235/60R18 Sidewall: 5.6 inches
Sidewall
5.6 inches
P235/60R18 Wheel diameter: 18 inches
Wheel diameter
18 inches
P235/60R18 Circumference: 91.7 inches
Circumference
91.7 inches
P235/60R18 Revolutions: 690 per mile
Revolutions
690 per mile

P235/60R18 — what does it mean?

  • P means "passenger car"
  • 235 stands for tread width in millimeters
  • 60 is an aspect ration between the tread width and the sidewall in percents
  • R means that the tire has a radial construction
  • 18 is a wheel diameter (or rim) in inches

P235/60R18 tire code
P235/60R18 tire code

How to convert P235 60R18 to inches?

First of all, we need to divide 235 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 9.3″. Then, 60% of the 9.3″ will result in 5.6″ sidewall.

To get the total height or tire diameter, we need to sum the 18″ rim diameter with two of the sidewall heights. It will result in a 29.2″ total tire diameter (or height).

For your convenience, below is a table for P235/60R18 conversion to inches:

Inches Metric
Overall diameter (height) 29.2″ 742 mm
Tread width 9.3″ 235 mm
Wheel diameter 18″ 742 mm
Sidewall height 5.6″ 141 mm
Circumference 91.7″ 2330 mm
Revolutions 690 / ml 429 / km

Alternatives to a P235/60R18 tire

If you're looking to upsize your P235 60R18 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
265/55R18 29.4″ 0.17% 10.4″ 18″
255/55R18 29″ -0.17% 10″ 18″
275/55R18 29.8″ 0.5% 10.8″ 18″
295/45R18 28.4″ -0.72% 11.6″ 18″
235/60R18 29.2″ 0% 9.3″ 18″
245/60R18 29.6″ 0.33% 9.6″ 18″
225/60R18 28.6″ -0.54% 8.9″ 18″
235/65R18 30″ 0.66% 9.3″ 18″
255/60R18 30″ 0.66% 10″ 18″
245/55R18 28.6″ -0.54% 9.6″ 18″