165/45R16 in inches

How tall is a 165 45R16 tire?

When converted to inches, the equivalent of a 165/45R16 tire size is 21.8x6.5R16. It means that:

  • height overall (or diameter) is 21.8 inches
  • tread width is 6.5 inches
  • wheel diameter is 16 inches

Learn more

165/45R16 tire size in inches
165/45R16 tire size chart

165/45R16 tire size in inches

165/45R16 Height / overall diameter: 21.8 inches
Height / overall diameter
21.8 inches
165/45R16 Tread width: 6.5 inches
Tread width
6.5 inches
165/45R16 Sidewall: 2.9 inches
Sidewall
2.9 inches
165/45R16 Wheel diameter: 16 inches
Wheel diameter
16 inches
165/45R16 Circumference: 68.5 inches
Circumference
68.5 inches
165/45R16 Revolutions: 925 per mile
Revolutions
925 per mile

165/45R16 — what does it mean?

  • 165 stands for tread width in millimeters
  • 45 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

165/45R16 tire code
165/45R16 tire code

How to convert 165 45R16 to inches?

First of all, we need to divide 165 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 6.5″. Then, 45% of the 6.5″ will result in 2.9″ 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 21.8″ total tire diameter (or height).

For your convenience, below is a table for 165/45R16 conversion to inches:

Inches Metric
Overall diameter (height) 21.8″ 554 mm
Tread width 6.5″ 165 mm
Wheel diameter 16″ 554 mm
Sidewall height 2.9″ 74 mm
Circumference 68.5″ 1740 mm
Revolutions 925 / ml 575 / km

Alternatives to a 165/45R16 tire

If you're looking to upsize your 165 45R16 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
115/70R16 22.4″ 0.67% 4.5″ 16″
135/60R16 22.4″ 0.67% 5.3″ 16″
165/40R16 21.2″ -0.73% 6.5″ 16″
195/40R16 22.2″ 0.45% 7.7″ 16″
215/35R16 22″ 0.22% 8.5″ 16″
T115/70D16 22.4″ 0.67% 4.5″ 16″
T115/70R16 22.4″ 0.67% 4.5″ 16″
T135/60D16 22.4″ 0.67% 5.3″ 16″
T135/60R16 22.4″ 0.67% 5.3″ 16″