2.7870912 km2
Answer: 510,000,000 km² = 5.489e+15 ft²
5,000,000 sq ft = 0.464515 sq km
13 square kilometers is 139,930,000 square feet.
2.65x1014Or for a more specific answer 263,450,880,000,000. the way I found this out was by multiplying how many square feet are in a square mile (27,878,400) and by how many square miles are in north america (9,450,000)
about 30.2 million km square
It is about 2,381,741 square kilometres or 919,595 square miles.
China has a total land area of approximately 9.6 million square kilometers, which is equivalent to 9.6 trillion square meters.
1 square km = 1 million square metres.
The conversion factor is: 0.00000009292,500 square feet x 0.0000000929 = 0.00023225 square km
The surface area of the Earth is: 4 * pi * r^2 = 4 * pi * (6378.1 km)^2 = 511201962.3 square km And, since there are 3280.839895 feet per km, there are 10763910.42 square feet per square km. So, the square footage of the earth (assuming a spherical shape, not ellipsoidal) is: 511201962.3 * 10763910.42 = 5.502532127 x 10^15 square feet That's approximately: 5,502,532,127,000,000 square feet Which is read, "Five quadrillion, five hundred two trillion, five hundred thirty-two billion, one hundred twenty-seven million square feet".
India's area is 3.287 million km²
"1 km" is a distance. It has no area.1 square km = 10,763,910 square feet (rounded)