Gold karat & purity calculator
Karat is a fraction out of 24. 22K is 22 parts gold to 2 parts alloy — 91.67% pure — so it is worth 91.67% of what the same weight of 24K is worth. Nothing more complicated than that.
Value at this purity
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The same weight at every purity
| Karat | Purity | Fineness | Pure gold | Value |
|---|
A "916" stamp means 916 parts per thousand — that is 22K. "750" is 18K, "585" is 14K. If a piece is
unstamped, its karat is unverified and no calculator can tell you what it is; only an assay can.