305/25R23 in inches

How tall is a 305 25R23 tire?

When converted to inches, the equivalent of a 305/25R23 tire size is 29x12R23. It means that:

  • height overall (or diameter) is 29 inches
  • tread width is 12 inches
  • wheel diameter is 23 inches

Learn more

305/25R23 tire size in inches
305/25R23 tire size chart

305/25R23 tire size in inches

305/25R23 Height / overall diameter: 29 inches
Height / overall diameter
29 inches
305/25R23 Tread width: 12 inches
Tread width
12 inches
305/25R23 Sidewall: 3 inches
3 inches
305/25R23 Wheel diameter: 23 inches
Wheel diameter
23 inches
305/25R23 Circumference: 91.1 inches
91.1 inches
305/25R23 Revolutions: 695 per mile
695 per mile

305/25R23 — what does it mean?

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

305/25R23 tire code
305/25R23 tire code

How to convert 305 25R23 to inches?

First of all, we need to divide 305 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 12″. Then, 25% of the 12″ will result in 3″ sidewall.

To get the total height or tire diameter, we need to sum the 23″ rim diameter with two of the sidewall heights. It will result in a 29″ total tire diameter (or height).

For your convenience, below is a table for 305/25R23 conversion to inches:

Inches Metric
Overall diameter (height) 29″ 737 mm
Tread width 12″ 305 mm
Wheel diameter 23″ 737 mm
Sidewall height 3″ 76 mm
Circumference 91.1″ 2314 mm
Revolutions 695 / ml 432 / km

Alternatives to a 305/25R23 tire

If you're looking to upsize your 305 25R23 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
265/25R23 28.2″ -0.72% 10.4″ 23″
315/25R23 29.2″ 0.17% 12.4″ 23″
P265/25R23 28.2″ -0.72% 10.4″ 23″