How Big Is Jupiter?

Jupiter: cloud wavesWaves of clouds on Jupiter as seen by the Juno spacecraft, May 19, 2017.

Jupiter is the largest planet in the solar system, with an equatorial diameter of about 143,000 kilometers (88,900 miles), which is more than 11 times the diameter of Earth. The planet’s sheer volume and mass are so great that it could contain all the other planets in the solar system combined.

Jupiter is also the most massive planet, with a mass about 318 times that of Earth. It is so massive that it accounts for more than two and a half times the mass of all the other planets in the solar system combined. Jupiter’s enormous mass means its gravitational pull has a significant influence on the orbits of other objects in the solar system, including asteroids and comets.

The Editors of Encyclopaedia Britannica