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Density of gold

With a density of 19.32 grams per cubic centimetre, gold is one of the densest metals on Earth. This is just one of the reasons gold is so desirable to humans is its high density.

Gold's density is sensational. Anyone that has held physical gold in their hands understands the unique, and undeniably impressive, feeling of weight that it conveys. Even a small bar, not much bigger than a credit card, feels much heavier than one might expect.

Density can be defined as the ratio between an object’s mass and volume. Scientifically, this would be the 'unit mass per unit volume' and is usually quoted in grams per cubic centimetre.

To get technical, this is sometimes also known as ‘specific gravity’, which is a unified ratio of density with water. Gold’s specific gravity is 19.3; simply put, you would need more than 19 times the equivalent volume of water to have the same weight in gold.
Gold density visualisation

A visualisation of how much water you would need to achieve the same mass as a cube of gold.


Gold alloys, such as products of 9, 14, 18 and 22 carat purity, will have slightly lower densities than a pure (24 carat) gold coin or bar due to the other materials being mixed with gold. A one ounce, 24ct gold coin, will be smaller than a one ounce, 22ct coin for example, because it is denser. The density will then depend on the metal that has been used in the alloy.

Gold density chart

Below is a table showing the density of gold in a number of useful measurement types:

Gold density chart/table with useful measurement types.