# Convert Double Square Inch to Double Square Foot (in4 to ft4)

In next fields, kindly type your value in the text box under title [ From: ] to convert from double square inch to double square foot (in4 to ft4). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].

**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 Foot** (abbreviation: **ft4**): is an imperial unit and U.S. customary unit (non-SI, non-metric) 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 Feet

*Example: How many double square feet are equivalent to 2.15 double square inches?*

As;

1 double square inches = 4.8224537041667E-5 double square feet

2.15 double square inches = Y double square feet

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

Y equals 2.15 times 4.8224537041667E-5 over 1

(i.e.) Y = 2.15 * 4.8224537041667E-5 / 1 = 0.00010368275463958 double square feet

Answer is: 0.00010368275463958 double square feet are equivalent to 2.15 double square inches.

*Practice Question: Convert the following units into ft4:*

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

( i ) 57.21 in4

( ii ) 67.29 in4

( iii ) 85.98 in4