What is the average total square footage of land on earth (in square miles)?

Answer 1

57,268,900 Square miles is the total footage of land
on earth in total square miles

Answer 2

Surface area is calculated by the following formula:

4*pi*radius^2

using a TI83 calculator, and a diameter of 12,756 acquired from my source below, I come up with a surface area of:

drum rolll please . . .

511,185,932 km^2

Now heres the tricky part. The Earth is not a perfect sphere. So, check out the second link which breaks it down to the following:

Land : 148.847x10^6 km^2
Water : 361.254x10^6 km^2

But, if you add these two together, you get: 510,101,000 km^2

That's pretty close to what I came up with.

Answer 3

Well, do you want to know how many square feet or square miles of land covers the earth? Why would there be an average?
Oh, I get it volcanoes, earthquakes and tides make land appear and disappear. Duh, I feel stupid.

Hey, the next guy is expressing area in kilometers-- did you ask for kilometers?

Answer 4

Surface Area: Land area, about 148,847,000 sq km, or about 30% of total surface area; water area, about 361,254,000 sq km, or about 70% of total surface area.

Land area = 148.847x106 km2 = 57.470x106 sq mi.
Ocean area = 361.254x106 km2 = 139.480x106 sq mi.

The earth is not a perfect sphere but an oblate spheroid - so one cannot accurately calculate this surface area based on the diameter of the earth.

Answer 5

I'm trying to imagine how large that is and why it hasn't gone off in 2400 years. Do mushrooms last forever? Very interesting and no, I wasn't aware but I am off to google it right now as this tit-bit has improved my day greatly.