१ई+९ मी॰²
To help compare orders of magnitude of different geographical regions, we list here areas between 1,000 km2 and 10,000 km2. See also areas of other orders of magnitude. areas less than 1000 km² 1,000 km2 is equal to: 1 E+9 m² in scientific notation 100,000 hectares approx. 386 square miles approx. 247,105 acres. a circle of radius of approx. 18 km. a square of side of approx. 32 km.