How to calculate the gold content of gold jewelry

The “K” in the gold works indicates its gold content rate. The gold content rate of gold products = X÷24, X is the number in front of "K", 24K is full gold. For example, the gold content rate of 22K gold = 22 ÷ 24 = 91.7%.

To calculate the gold content of a gold product, the same can be said: the gold content of the gold product = X ÷ 24 × Y, Y represents the weight of the gold product. Such as 4 grams of 18K gold content = 18 ÷ 24 × 4 grams = 3 grams.

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