World Facts

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Our world, also referred to as Earth, Terra, Gaia or Blue Planet, is the third planet from the Sun, and the fifth-largest of the eight planets in the Solar System. The sun is one of estimated 200 to 400 billion stars in a minor spiral galaxy, known to the locals as Milky Way. In the Milky Way our planet is positioned at the inner rim of the Orion Arm. The Milky Way itself is a galaxy part of the Virgo Supercluster, a group of galaxies in our known Universe.

Key Facts

Local Universe -> Virgo Supercluster -> Milky Way -> Orion Arm -> Solar System
Mean distance to sun:
149.6 million km
Closest stars next to the sun:
Proxima Centauri, Rigil Kentaurus and Alpha Centauri B (all in a distance of about 4.3 light years)
Nearest planetary neighbors:
Venus and Mars
Mean radius:
6,371 km
Mean diameter:
12,742 km
Equatorial perimeter:
40,075,017 km
Appr. 4.54 billion years
Surface area:
510,072,000 km² total (100%)
148,940,000 km² land (29.2%)
361,132,000 km² water (70.8%)
7 (North America, South America, Europe, Africa, Asia, Australia & Oceania, Antarctica)
Highest point on surface:
Mount Everest (8,850 m)
Longest river:
Nile (6,650 km)
Life on Earth:
Appr. 30 million different species including animals, plants, fungi and bacteria,
1.5 million animal species
7 billion
Population density:
46.9/km² considering only land surface area
Most densely populated country:
Monaco with 15,142/km²
Least densely populated country:
Mongolia 1.76/km²
Biggest city:
Tokyo-Yokohama (population urban area 37,239,000)
Souvereign states:
206 (recognized by the United Nations)

Earth Symbol:
Earth Symbol


Decimal mark is a dot ("."), thousands separator is comma (",")!
Numbers are valid for year 2012!


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Wikipedia - Earth:

Wikipedia - Continents:

Wikipedia - List of sovereign states:

Wikipedia - List of sovereign states by continent:

Wikipedia - List of rivers by length:

Wikipedia - World largest cities:'s_largest_cities

Wikipedia - Seven Summits: