T175/90R17 in inches

How tall is a T175 90R17 tire?

When converted to inches, the equivalent of a T175/90R17 tire size is 29.4x6.9R17. It means that:

  • height overall (or diameter) is 29.4 inches
  • tread width is 6.9 inches
  • wheel diameter is 17 inches

Learn more

T175/90R17 tire size in inches
T175/90R17 tire size chart

T175/90R17 tire size in inches

T175/90R17 Height / overall diameter: 29.4 inches
Height / overall diameter
29.4 inches
T175/90R17 Tread width: 6.9 inches
Tread width
6.9 inches
T175/90R17 Sidewall: 6.2 inches
Sidewall
6.2 inches
T175/90R17 Wheel diameter: 17 inches
Wheel diameter
17 inches
T175/90R17 Circumference: 92.3 inches
Circumference
92.3 inches
T175/90R17 Revolutions: 686 per mile
Revolutions
686 per mile

T175/90R17 — what does it mean?

  • T means "temporary"
  • 175 stands for tread width in millimeters
  • 90 is an aspect ration between the tread width and the sidewall in percents
  • R means that the tire has a radial construction
  • 17 is a wheel diameter (or rim) in inches

T175/90R17 tire code
T175/90R17 tire code

How to convert T175 90R17 to inches?

First of all, we need to divide 175 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 6.9″. Then, 90% of the 6.9″ will result in 6.2″ sidewall.

To get the total height or tire diameter, we need to sum the 17″ rim diameter with two of the sidewall heights. It will result in a 29.4″ total tire diameter (or height).

For your convenience, below is a table for T175/90R17 conversion to inches:

Inches Metric
Overall diameter (height) 29.4″ 747 mm
Tread width 6.9″ 175 mm
Wheel diameter 17″ 747 mm
Sidewall height 6.2″ 158 mm
Circumference 92.3″ 2346 mm
Revolutions 686 / ml 426 / km

Alternatives to a T175/90R17 tire

If you're looking to upsize your T175 90R17 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
255/65R17 30″ 0.5% 10″ 17″
245/65R17 29.6″ 0.17% 9.6″ 17″
235/65R17 29″ -0.34% 9.3″ 17″
275/60R17 30″ 0.5% 10.8″ 17″
265/60R17 29.6″ 0.17% 10.4″ 17″
235/70R17 30″ 0.5% 9.3″ 17″
275/55R17 28.8″ -0.51% 10.8″ 17″
165/90R17 28.8″ -0.51% 6.5″ 17″
175/90R17 29.4″ 0% 6.9″ 17″
215/75R17 29.6″ 0.17% 8.5″ 17″