# P305/70R15 in inches

## How tall is a P305 70R15 tire?

When converted to inches, the equivalent of a P305/70R15 tire size is 31.8x12R15. It means that:

• height overall (or diameter) is 31.8 inches
• tread width is 12 inches
• wheel diameter is 15 inches

## P305/70R15 tire size in inches

Height / overall diameter
31.8 inches
12 inches
Sidewall
8.4 inches
Wheel diameter
15 inches
Circumference
99.9 inches
Revolutions
634 per mile

## P305/70R15 — what does it mean?

• P means "passenger car"
• 305 stands for tread width in millimeters
• 70 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

## How to convert P305 70R15 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, 70% of the 12″ will result in 8.4″ 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 31.8″ total tire diameter (or height).

For your convenience, below is a table for P305/70R15 conversion to inches:

Inches Metric
Overall diameter (height) 31.8″ 808 mm