If you mean 1km squared then yes it is equal.
1km = 1000000mm
150000 in hectares = 15 hectares
2,800,000 Hectares
41,43 million hectares
It is 3 hectares.
1.2 hectares
6,811,900 hectares.
200,000m2 equates to 20 hectares.
Exactly 258.998811 hectares
3.25 hectares
7.44 hectares