You can fit all the planets in our solar system into Jupiter and there still would be room.

Jupiter has a volume of 1.4313×10^15 km3 or equivalent 1321.3 Earths. The combined volume of all the other planets in our solar system, Mercury, Venus, Earth, Mars, Saturn, Uranus, and Neptune is only equivalent of 886.48 Earths. Adding in Pluto, which has only 0.0059 the volume of Earth, doesn’t help much either. Not only that, but the mass of Jupiter is more than twice the combined mass of the rest of the solar system’s planets.

Learn more about Jupiter here.