Image showing the size of the Moon when compared to Earth. Credit: NASA.
4 – The number of Moons in our Solar System that are larger than our Moon – Ganymede, Titan, Callisto and Io.
Diameter of the Moon
3,474 – The diameter of the Moon, in kilometres.
12,756 – The diameter of the Earth, in kilometres.
27% – The size of the Moon’s diameter in comparison to Earth.
Circumference of the Moon
10,921 – The circumference of the Moon, in kilometers.
Surface Area of the Moon
37.9 million – The surface area of the Moon, in square kilometers.
510 million – The surface area of Earth, in square kilometers.
Did You Know?
The Moon’s surface area is roughly the same as that of the USA, Canada and Russia combined (3.793 x 107 km² to be precise).
44.4 million – The surface area of Asia, in square kilometers, 6.5 million km² larger than the surface of the Moon.
7.4% – The surface area of the Moon expressed as a percentage of the surface area of Earth.
Volume of the Moon
21.9 billion – The volume of the Moon, in cubic km (2.195 x 1010 km³).
1 trillion – The volume of Earth, in cubic km.
2% – The volume of the Moon expressed as a percentage of the volume of Earth.
Mass of the Moon
7.347 x 1022 kg – The mass of the Moon.
5.97 x 1024 kg – The mass of Earth.
1.2% – The mass of the Moon expressed as a percentage of the mass of Earth.
81 – The number of times you could squash the Moon into the Earth.