How to convert 24K gold to 16K
24K gold is 99.9% pure and 16K gold is 66.7% pure. To find the 16K weight with the same gold content, multiply the 24K weight by 0.999 and divide by 0.667. One gram of 24K equals 1.4978 grams of 16K.
Example
10 g of 24K gold contains 9.99 g of pure gold, the same as 14.9775 g of 16K. Today 10 g of 24K is worth $1,330.
When you need this conversion
- Exchanging old jewelry for new pieces in a different karat.
- Comparing prices quoted per gram of 22k with prices quoted for 18k or 24k.
- Planning how much of a karat a jeweler needs to remake an item.
Note that remaking jewelry involves melting losses and labor, so a jeweler's exchange rate is usually below this pure-gold equivalent. See methodology.