EXPLORE
Space and Science

Planets and Moon Diameters Compared

  • Home
  •  >  Planets and Moon Diameters Compared

Order by: Distance from the Sun | Diameter

Planets / Moons Diameter and Radius

The following is a table of comparisons of planets (and the Moon) diameters (sizes) using NASA data.

Name
 x
Earth's diameter
Diameter (km) 
Diameter (mi) 
Radius (km) 

Mercury
0.383 x
Earth's diameter
Diameter
4881 km
3032.91 mi
Radius
2440.5 km

Venus
0.949 x
Earth's diameter
Diameter
12103.6 km
7520.83 mi
Radius
6051.8 km

Earth
1 x
Earth's diameter
Diameter
12756.274 km
7926.38 mi
Radius
6378.137 km

Moon
0.273 x
Earth's diameter
Diameter
3476.2 km
2160.01 mi
Radius
1738.1 km

Mars
0.532 x
Earth's diameter
Diameter
6792.4 km
4220.6 mi
Radius
3396.2 km

Jupiter
11.209 x
Earth's diameter
Diameter
142984 km
88846.14 mi
Radius
71492 km

Saturn
9.449 x
Earth's diameter
Diameter
120536 km
74897.6 mi
Radius
60268 km

Uranus
4.007 x
Earth's diameter
Diameter
51118 km
31763.25 mi
Radius
25559 km

Neptune
3.883 x
Earth's diameter
Diameter
49528 km
30775.27 mi
Radius
24764 km

Pluto
0.186 x
Earth's diameter
Diameter
2376 km
1476.38 mi
Radius
1188 km

The radius data which this tool uses is from the NASA website (nssdc.gsfc.nasa.gov) and uses the radius at the equator (equatorial radius).

Table calculations and conversions by Explore Space and Science.

Planets / Moon Visually Compared

Planets and the Moons' diameters are visually compared with each other below. Scaling each according its diameter, using NASA data.

Mercury

Mercury size comparisonA size comparison of Mercury

Venus

Venus size comparisonA size comparison of Venus

Earth

Earth size comparisonA size comparison of Earth

Moon

Moon size comparisonA size comparison of Moon

Mars

Mars size comparisonA size comparison of Mars

Jupiter

Jupiter size comparisonA size comparison of Jupiter

Saturn

Saturn size comparisonA size comparison of Saturn

Uranus

Uranus size comparisonA size comparison of Uranus

Neptune

Neptune size comparisonA size comparison of Neptune

Pluto

Pluto size comparisonA size comparison of Pluto

Planets / Moons Diameter and Radius

The following is a table of comparisons of planets (and the Moon) diameters (sizes) using NASA data.

Name
 x
Earth's diameter
Diameter (km) 
Diameter (mi) 
Radius (km) 

Mercury
0.383 x
Earth's diameter
Diameter
4881 km
3032.91 mi
Radius
2440.5 km

Venus
0.949 x
Earth's diameter
Diameter
12103.6 km
7520.83 mi
Radius
6051.8 km

Earth
1 x
Earth's diameter
Diameter
12756.274 km
7926.38 mi
Radius
6378.137 km

Moon
0.273 x
Earth's diameter
Diameter
3476.2 km
2160.01 mi
Radius
1738.1 km

Mars
0.532 x
Earth's diameter
Diameter
6792.4 km
4220.6 mi
Radius
3396.2 km

Jupiter
11.209 x
Earth's diameter
Diameter
142984 km
88846.14 mi
Radius
71492 km

Saturn
9.449 x
Earth's diameter
Diameter
120536 km
74897.6 mi
Radius
60268 km

Uranus
4.007 x
Earth's diameter
Diameter
51118 km
31763.25 mi
Radius
25559 km

Neptune
3.883 x
Earth's diameter
Diameter
49528 km
30775.27 mi
Radius
24764 km

Pluto
0.186 x
Earth's diameter
Diameter
2376 km
1476.38 mi
Radius
1188 km

The radius data which this tool uses is from the NASA website (nssdc.gsfc.nasa.gov) and uses the radius at the equator (equatorial radius).

Table calculations and conversions by Explore Space and Science.
X