155/80R15 in inches

How tall is a 155 80R15 tire?

When converted to inches, the equivalent of a 155/80R15 tire size is 24.8x6.1R15. It means that:

  • height overall (or diameter) is 24.8 inches
  • tread width is 6.1 inches
  • wheel diameter is 15 inches

Learn more

155/80R15 tire size in inches
155/80R15 tire size chart

155/80R15 tire size in inches

155/80R15 Height / overall diameter: 24.8 inches
Height / overall diameter
24.8 inches
155/80R15 Tread width: 6.1 inches
Tread width
6.1 inches
155/80R15 Sidewall: 4.9 inches
Sidewall
4.9 inches
155/80R15 Wheel diameter: 15 inches
Wheel diameter
15 inches
155/80R15 Circumference: 77.9 inches
Circumference
77.9 inches
155/80R15 Revolutions: 814 per mile
Revolutions
814 per mile

155/80R15 — what does it mean?

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

155/80R15 tire code
155/80R15 tire code

How to convert 155 80R15 to inches?

First of all, we need to divide 155 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 6.1″. Then, 80% of the 6.1″ will result in 4.9″ sidewall.

To get the total height or tire diameter, we need to sum the 15″ rim diameter with two of the sidewall heights. It will result in a 24.8″ total tire diameter (or height).

For your convenience, below is a table for 155/80R15 conversion to inches:

Inches Metric
Overall diameter (height) 24.8″ 630 mm
Tread width 6.1″ 155 mm
Wheel diameter 15″ 630 mm
Sidewall height 4.9″ 124 mm
Circumference 77.9″ 1978 mm
Revolutions 814 / ml 506 / km

Alternatives to a 155/80R15 tire

If you're looking to upsize your 155 80R15 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
205/60R15 24.6″ -0.2% 8.1″ 15″
205/65R15 25.4″ 0.59% 8.1″ 15″
135/90R15 24.6″ -0.2% 5.3″ 15″
165/80R15 25.4″ 0.59% 6.5″ 15″
175/70R15 24.6″ -0.2% 6.9″ 15″
175/75R15 25.4″ 0.59% 6.9″ 15″
185/65R15 24.4″ -0.4% 7.3″ 15″
185/70R15 25.2″ 0.39% 7.3″ 15″
195/60R15 24.2″ -0.6% 7.7″ 15″
195/65R15 25″ 0.2% 7.7″ 15″