Gold Density Test Calculator
Measure gold density at home with water displacement
The density test is the most scientific home test for gold. Gold has a density of 19.3 g/cm3 — it's one of the densest common metals. By measuring weight and volume (via water displacement), you can calculate if your item matches gold's expected density. Weigh your item dry on a kitchen scale. Then, lower it into a narrow glass of water and measure how much the water level rises in ml (1 ml = 1 cm3). Divide weight by volume to get density. Pure 24K gold should be ~19.3, 22K ~17.7-18.5, 18K ~15.2-16.9, 14K ~12.9-14.6. Warning: tungsten has the same density as gold (19.3) and is used in sophisticated fakes.
Reference densities
⚠ Tungsten has the same density as gold. Density alone cannot detect tungsten-filled items. For high-value items, seek professional XRF testing.
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Frequently asked questions
What is the density of pure gold?▾
Pure gold (24K) has a density of 19.3 g/cm3, making it one of the densest common metals.
How do I measure gold density at home?▾
Weigh the item dry, then measure water displacement when submerged. Divide weight (grams) by volume (ml) to get density.
Can fake gold have the same density as real gold?▾
Yes — tungsten has a density of 19.3 g/cm3, identical to gold. Tungsten-filled fakes require professional XRF testing.
What density indicates my gold is 22K?▾
22K gold has a density range of 17.7-18.5 g/cm3, depending on the alloy metals used.
Is the density test accurate for jewelry?▾
It works best for solid items. Hollow, stone-set, or multi-metal pieces give inaccurate readings due to trapped air or mixed materials.