**Definitions:**

**Kilometer Square** (abbreviation: **km2**): is the SI derived unit of area. It is the area of a square whose sides measure exactly one kilometre. The square metre is derived from the SI base unit of the metre, which itself is the length of the path travelled by light in absolute vacuum within time interval of 1/299,792,458 * 1000 of a second.

**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 Kilometers Square to Inches Square

*Example: How many inches square are equivalent to 21.76 kilometers square?*

As;

1 kilometers square = 1550003099.9938 inches square

21.76 kilometers square = Y inches square

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

Y equals 21.76 times 1550003099.9938 over 1

(i.e.) Y = 21.76 * 1550003099.9938 / 1 = 33728067455.865 inches square

Answer is: 33728067455.865 inches square are equivalent to 21.76 kilometers 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 ) 45.61 km2

( ii ) 42.31 km2

( iii ) 92.14 km2