**Definitions:**

**Pound Per Cubic Inch** (abbreviations: **lb/in3, or ppi3**): is a unit of density, defined by mass in pound divided by volume in cubic inch

**Pound Per Cubic Foot** (abbreviations: **lb/ft3, or ppf3**): is a unit of density, defined by mass in pound divided by volume in cubic foot

## How to Convert Pounds Per Cubic Inches to Pounds Per Cubic Feet

*Example: How many pounds per cubic feet are equivalent to 23.78 pounds per cubic inches?*

As;

1 pounds per cubic inches = 1727.115716753 pounds per cubic feet

23.78 pounds per cubic inches = Y pounds per cubic feet

Assuming Y is the answer, and by criss-cross principle;

Y equals 23.78 times 1727.115716753 over 1

(i.e.) Y = 23.78 * 1727.115716753 / 1 = 41070.811744387 pounds per cubic feet

Answer is: 41070.811744387 pounds per cubic feet are equivalent to 23.78 pounds per cubic inches.

*Practice Question: Convert the following units into lb/ft3:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 12.79 lb/in3

( ii ) 89.43 lb/in3

( iii ) 79.01 lb/in3