Astronomy and Space

Planets and Moons

What are the diameters of the planets?

Planet Diameter (Miles)* Diameter (Kilometers)
Mercury 3,031 4,878
Venus 7,520 12,104
Earth 7,926 12,756
Mars 4,221 6,794
Jupiter 88,846 142,984
Saturn 74,898 120,536
Uranus 31,763 51,118
Neptune 31,329 50,530

*All diameters are as measured at the planet’s equator.


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