**Definitions:**

**Double Square Inch** (abbreviations: **in4, or in 4**): is a unit in the (British) imperial and United States customary systems of measurement of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.

**Double Square Meter** (abbreviations: **m4, or m 4**): is the SI derived unit of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.

## How to Convert Double Square Inches to Double Square Meters

*Example: How many double square meters are equivalent to 40.43 double square inches?*

As;

1 double square inches = 4.162314256E-7 double square meters

40.43 double square inches = Y double square meters

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

Y equals 40.43 times 4.162314256E-7 over 1

(i.e.) Y = 40.43 * 4.162314256E-7 / 1 = 1.6828236537008E-5 double square meters

Answer is: 1.6828236537008E-5 double square meters are equivalent to 40.43 double square inches.

*Practice Question: Convert the following units into m4:*

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

( i ) 50.26 in4

( ii ) 90.45 in4

( iii ) 83.09 in4