1 km x 2 km = 2 km2
1,000 metres in a kilometre, so a square kilometre is 1,000m x 1,000m, or 1,000,000m2. A million square metres in a square kilometre.
A kilometre is 100,000 centimetres long. A square kilometre is one kilometre long and one kilometre wide. A square centimetre is one centimetre long and one centimetre wide. If you filled up a kilometre-sized square (a square kilometre) with centimetre-sized squares (square centimetres) you would need 100,000 rows of 100,000 square centimetres, which comes to 10^10, or 10,000,000,000 (10 billion) square centimetres.
Rounded to nine decimal places, one square kilometre is equal to 0.386102159 miles.
10,000,000,000
1012 or a trillion of them.
A kilometre is a unit of distance. A square kilometre is a unit of area. The two units are therefore incompatible.
One square km = 100 hectares
There is one trillionths of one square kilometre in a square millimetre.
It is an area equivalent to 1 million square metres.
1 square kilometre = 100 hectares (ha) > 300 000 square kilometre = 300 000 * 100 = 30 000 000 hectares
243,610 km²
A millionth of a square kilometre equals one square metre.