What is the density of Neptune compared to Earth?

The density of Neptune is more or less 1.64 gr/cm[math]^3[/math]. For comparison, the density of water is 1 gr/cm[math]^3[/math]. In other words, if you put Neptune in a huge bathtub, it will sink. Earth itself has a density of 5.51 gr/cm[math]^3[... read more

Neptune is 3.9 times bigger. Now mass. The mass of Neptune is 1.02 x 10 26 kg. If you wanted to write it out, it would be 102,000,000,000,000,000,000,000,000 kg. Neptune has 17 times as much mass compared to the Earth. read more

The density of Neptune is more or less 1.64 gr/cm [math]^3[/math]. For comparison, the density of water is 1 gr/cm [math]^3[/math]. In other words, if you put Neptune in a huge bathtub, it will sink. Earth itself has a density of 5.51 gr/cm [math]^3[/math]. So, Earth is ~3.4 times denser than Neptune. read more

Neptune is less dense than the Earth. Neptune's density is 1.638grams per cubic centimeters and Earth's density is 5.513 grams percubic centimeters. read more