**Definitions:**

**Foot Square** (abbreviations: **ft2, or sf, or sq ft**): (plural square feet) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area.

**Inch Square** (abbreviations: **in2, or si**): (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch.

## How to Convert Feet Square to Inches Square

*Example: How many inches square are equivalent to 87.45 feet square?*

As;

1 feet square = 144 inches square

87.45 feet square = Y inches square

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

Y equals 87.45 times 144 over 1

(i.e.) Y = 87.45 * 144 / 1 = 12592.8 inches square

Answer is: 12592.8 inches square are equivalent to 87.45 feet square.

*Practice Question: Convert the following units into in2:*

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

( i ) 82.21 ft2

( ii ) 77.29 ft2

( iii ) 33.5 ft2