**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

**Tonne Per Cubic Meter** (abbreviations: **t/m3, or tpm3**): is a unit of density, defined by mass in tonnes divided by volume in cubic meter

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

*Example: How many tonnes per cubic meters are equivalent to 82.66 pounds per cubic inches?*

As;

1 pounds per cubic inches = 28.35 tonnes per cubic meters

82.66 pounds per cubic inches = Y tonnes per cubic meters

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

Y equals 82.66 times 28.35 over 1

(i.e.) Y = 82.66 * 28.35 / 1 = 2343.411 tonnes per cubic meters

Answer is: 2343.411 tonnes per cubic meters are equivalent to 82.66 pounds per cubic inches.

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

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

( i ) 37.38 lb/in3

( ii ) 15.22 lb/in3

( iii ) 15.73 lb/in3