Earth Facts and Statistics (2021) | By the Numbers

Earth Facts and Statistics 2019

I thought it would be interesting to go searching for Earth facts and statistics to see just what our planet is all about. Here is what I was able to dig up. As always, I will be adding and updating stats as I find new ones, so be sure to stay tuned…

Earth Facts and Statistics

Photo by Ricardo Resende on Unsplash

Please note that some of these global warming facts are easier to find than others. Many of these stats come from the governmental or scientific reports, but some are based on news reports and not necessarily official tallies. As always, all stats are linked to their source. Basically, this is the best I can find and I don’t guarantee anything to be 100% accurate.

See also: Global Warming Facts and Climate Change Statistics

Earth Facts

  • The Earth’s Circumference: 40, 075.017 km at the equator (24,901.461 miles)
  • Earth’s Diameter: 13,000 km (8,000 miles)
  • Earth’s Atmosphere Composition: 78.08% nitrogen, 20.95% oxygen, 0.93% argon and numerous less significant elements.
  • Earth’s Core Composition: Mostly nickel and iron
  • Earth’s Ground Layers: 
    • Crust
    • Mantle
    • Outer Core
    • Inner Core
  • Earth’s Distance From the Sun:
    • Minimum: 146 million km (91 million miles)
    • Maximum: 152 million km (94.5 million miles)
  • Earth’s Distance From the Moon: 384,400 km (238,855 miles)

Earth Statistics

How many people are there in the world?

There are 7.716 billion people in the world as of July 10, 2019.

Largest countries in the world by population:

  1. China
  2. India
  3. United States
  4. Indonesia
  5. Brazil

Largest countries in the world by land mass:

  1. Russia
  2. Canada
  3. United States
  4. China
  5. Brazil

When did life first appear on Earth?

roughly 3.5 billion years ago

How old is the Earth?

roughly 4.5 billion years old

Percentage of the Earth’s surface that is covered by water:


Earth is the fifth largest planet in the solar system.

Time it takes for the Earth to orbit the sun:

365.26 days

Time it takes for the Earth to rotate on its axis:

23.934 hours