How dense do gas giant is?

Gas giants, like Jupiter and Saturn, have relatively low densities compared to terrestrial planets. For instance, Jupiter has an average density of about 1.33 grams per cubic centimeter, while Saturn is even less dense at about 0.69 grams per cubic centimeter—less than that of water. This low density is primarily due to their composition, which consists mainly of hydrogen and helium, as well as their large volumes filled with gas.