**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

**Kilogram Per Cubic Meter** (abbreviations: **kg/m3, or kgpm3**): is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic metres.

## How to Convert Pounds Per Cubic Inches to Kilograms Per Cubic Meters

*Example: How many kilograms per cubic meters are equivalent to 66.7 pounds per cubic inches?*

As;

1 pounds per cubic inches = 28350 kilograms per cubic meters

66.7 pounds per cubic inches = Y kilograms per cubic meters

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

Y equals 66.7 times 28350 over 1

(i.e.) Y = 66.7 * 28350 / 1 = 1890945 kilograms per cubic meters

Answer is: 1890945 kilograms per cubic meters are equivalent to 66.7 pounds per cubic inches.

*Practice Question: Convert the following units into kg/m3:*

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

( i ) 42.61 lb/in3

( ii ) 30.1 lb/in3

( iii ) 22.22 lb/in3