P185/65R16 in inches

How tall is a P185 65R16 tire?

When converted to inches, the equivalent of a P185/65R16 tire size is 25.4x7.3R16. It means that:

  • height overall (or diameter) is 25.4 inches
  • tread width is 7.3 inches
  • wheel diameter is 16 inches

Learn more

P185/65R16 tire size in inches
P185/65R16 tire size chart

P185/65R16 tire size in inches

P185/65R16 Height / overall diameter: 25.4 inches
Height / overall diameter
25.4 inches
P185/65R16 Tread width: 7.3 inches
Tread width
7.3 inches
P185/65R16 Sidewall: 4.7 inches
Sidewall
4.7 inches
P185/65R16 Wheel diameter: 16 inches
Wheel diameter
16 inches
P185/65R16 Circumference: 79.8 inches
Circumference
79.8 inches
P185/65R16 Revolutions: 795 per mile
Revolutions
795 per mile

P185/65R16 — what does it mean?

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

P185/65R16 tire code
P185/65R16 tire code

How to convert P185 65R16 to inches?

First of all, we need to divide 185 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 7.3″. Then, 65% of the 7.3″ will result in 4.7″ sidewall.

To get the total height or tire diameter, we need to sum the 16″ rim diameter with two of the sidewall heights. It will result in a 25.4″ total tire diameter (or height).

For your convenience, below is a table for P185/65R16 conversion to inches:

Inches Metric
Overall diameter (height) 25.4″ 645 mm
Tread width 7.3″ 185 mm
Wheel diameter 16″ 645 mm
Sidewall height 4.7″ 120 mm
Circumference 79.8″ 2025 mm
Revolutions 795 / ml 494 / km

Alternatives to a P185/65R16 tire

If you're looking to upsize your P185 65R16 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
125/90R16 24.8″ -0.59% 4.9″ 16″
135/90R16 25.6″ 0.19% 5.3″ 16″
145/80R16 25.2″ -0.19% 5.7″ 16″
155/80R16 25.8″ 0.38% 6.1″ 16″
185/60R16 24.8″ -0.59% 7.3″ 16″
185/65R16 25.4″ 0% 7.3″ 16″
195/60R16 25.2″ -0.19% 7.7″ 16″
195/65R16 26″ 0.57% 7.7″ 16″
205/55R16 24.8″ -0.59% 8.1″ 16″
205/60R16 25.6″ 0.19% 8.1″ 16″