How many Earths can fit inside Sun, Jupiter, Saturn, Uranus & Neptune?

The Sun, a medium-sized star with a radius of about 700,000 km, can fit roughly 1.3 million Earths by volume. Jupiter, the largest planet in the solar system, can hold over 1,300 Earths. Saturn can fit more than 700 Earths. Uranus holds about 63 Earths, while Neptune can accommodate around 57-58 Earths.