P245/35R21 in inches

How tall is a P245 35R21 tire?

When converted to inches, the equivalent of a P245/35R21 tire size is 27.8x9.6R21. It means that:

  • height overall (or diameter) is 27.8 inches
  • tread width is 9.6 inches
  • wheel diameter is 21 inches

Learn more

P245/35R21 tire size in inches
P245/35R21 tire size chart

P245/35R21 tire size in inches

P245/35R21 Height / overall diameter: 27.8 inches
Height / overall diameter
27.8 inches
P245/35R21 Tread width: 9.6 inches
Tread width
9.6 inches
P245/35R21 Sidewall: 3.4 inches
Sidewall
3.4 inches
P245/35R21 Wheel diameter: 21 inches
Wheel diameter
21 inches
P245/35R21 Circumference: 87.3 inches
Circumference
87.3 inches
P245/35R21 Revolutions: 726 per mile
Revolutions
726 per mile

P245/35R21 — what does it mean?

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

P245/35R21 tire code
P245/35R21 tire code

How to convert P245 35R21 to inches?

First of all, we need to divide 245 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 9.6″. Then, 35% of the 9.6″ will result in 3.4″ sidewall.

To get the total height or tire diameter, we need to sum the 21″ rim diameter with two of the sidewall heights. It will result in a 27.8″ total tire diameter (or height).

For your convenience, below is a table for P245/35R21 conversion to inches:

Inches Metric
Overall diameter (height) 27.8″ 706 mm
Tread width 9.6″ 245 mm
Wheel diameter 21″ 706 mm
Sidewall height 3.4″ 86 mm
Circumference 87.3″ 2217 mm
Revolutions 726 / ml 451 / km

Alternatives to a P245/35R21 tire

If you're looking to upsize your P245 35R21 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
235/35R21 27.4″ -0.36% 9.3″ 21″
245/35R21 27.8″ 0% 9.6″ 21″
255/30R21 27″ -0.72% 10″ 21″
255/35R21 28″ 0.18% 10″ 21″
265/30R21 27.2″ -0.54% 10.4″ 21″
265/35R21 28.4″ 0.53% 10.4″ 21″
275/30R21 27.6″ -0.18% 10.8″ 21″
275/35R21 28.6″ 0.7% 10.8″ 21″
285/30R21 27.8″ 0% 11.2″ 21″
295/30R21 28″ 0.18% 11.6″ 21″