**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

**Slug Per Cubic Foot** (abbreviations: **slug/ft3, or slugpf3**): is a unit of density, defined by mass in slug divided by volume in cubic foot

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

*Example: How many slugs per cubic feet are equivalent to 78.96 pounds per cubic inches?*

As;

1 pounds per cubic inches = 53.678756476684 slugs per cubic feet

78.96 pounds per cubic inches = Y slugs per cubic feet

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

Y equals 78.96 times 53.678756476684 over 1

(i.e.) Y = 78.96 * 53.678756476684 / 1 = 4238.474611399 slugs per cubic feet

Answer is: 4238.474611399 slugs per cubic feet are equivalent to 78.96 pounds per cubic inches.

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

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

( i ) 40.7 lb/in3

( ii ) 76.53 lb/in3

( iii ) 77.42 lb/in3