At One Place

Does gold float?

Does gold float?
No
19,300 kg/m³ against water's 1,000

Gold sinks. At 19,300 kg/m³ it is 19.30 times denser than water.

Why

Floating is decided by density alone — mass divided by volume — compared against the fluid. Weight has nothing to do with it directly: a 200-tonne ship floats and a 2-gram pebble sinks, because the ship encloses enough air to bring its average density below that of water. That is also the only reason a steel hull works.

The numbers

Density
19,300 kg/m³
Relative to fresh water
19.300×
Floats in fresh water
No
Floats in seawater
No

Compared with other materials

Material Density Floats
mercury 13,534 kg/m³ No
tungsten carbide 14,900 kg/m³ No
tungsten 19,250 kg/m³ No
gold ← 19,300 kg/m³ No
platinum 21,450 kg/m³ No

Common questions

Does gold float in water?
No — at 19,300 kg/m³ it is denser than water's 1,000.
Does weight decide whether something floats?
No, density does. A 200-tonne ship floats and a small pebble sinks, because the ship encloses enough air to bring its average density below water.

Related pages

Sources

  1. Wikidata — Wikimedia Foundation (CC0 1.0)

How these figures are compiled and checked