Right click the field heading for your area field in the attribute table and click calculate geometry. Choose sq\km from the dropdown. Click OK
Open the attribute table of the polygon shapefile you want to calculate. Add a field called Area, double type. Right click on the field heading in the attribute table and choose calculate geometry. Area should be the default, you will have to choose sq\km from the dropdown. Click OK. The double type will give you plenty of accuracy (decimal places).
not possible to change an area unit into a length unit
Planet Earth - 13.3 per km². If just Earth's land area (of 150 million km²) is taken into account, then human population density increases to 45.3 per km². This calculation includes all continental and island land area, including Antarctica. If Antarctica is excluded, then population density rises to 50 people per km²
The area of Honduras in km is 112,492 km²
No the Km can never be a negative value. The Km increases or decreases with temperature. An incorrect calculation can produce a negative value.
The area of Ontario in km is 1,076,395.
Not valid to change area measure to length measure
A circle with a radius of 0.9 km has an area of 2.54 square km
km means "kilometer", and the prefix "kilo" means 1000. Therefore you need to multiply by 1000, so 104 km = 104,000 m.
Tahiti has an area of 1,045 km²
22.1 km. Area of a rectangle =L x W
France comprises an area of 643,427 sq km