18K gold calculator

18K Gold Value per Gram Calculator

18K gold is 75.00% pure by the karat formula. Enter a weight and spot price to see its estimated melt value and a buyer payout.

Free calculator

Gold value, with the math visible

Manual spot

Estimated payout$0.00

Melt value$0.00

Pure gold0.000 g

Spot / gram$0.00

Buyer spread$0.00

Using the spot price you entered. Estimate only—not a guaranteed offer.