金価格リアルタイム更新
スクラップゴールド計算機
金製品やコイン、貴金属スクラップの最新買取参考価格を瞬時に計算します。
金の評価額を計算
Estimated Melt Value
$0.00
Please enter a valid weight.
金製品やコイン、貴金属スクラップの最新買取参考価格を瞬時に計算します。
—
Based on current spot price
| Karat | Purity | Per Gram | Per DWT | Per Oz (Troy) |
|---|
Three simple steps to discover your gold's melt value
Use a kitchen scale or jeweler's scale. Select your preferred unit — grams, pennyweights, troy ounces, or grains.
Check your gold for karat stamps (e.g., 10K, 14K, 18K, 22K, 24K). This tells you the purity of the alloy.
Hit calculate for the estimated melt value based on current live market price. Adjust price for custom quotes.
Weight is converted to troy ounces, multiplied by the purity fraction (karat ÷ 24), then by the current gold spot price per troy ounce.
Select your preferred language for gold melt calculations worldwide
Scrap gold refers to any gold item sold primarily for its gold content rather than its craftsmanship. This includes broken jewelry, old dental gold, gold coins, and gold-filled electronics. Its value is determined by the weight, karat purity, and current market price per troy ounce.
Most gold jewelry has a karat stamp. Look for markings like 10K, 14K, 18K, 22K, or 24K. You may also see European hallmarks: 375 (9K), 417 (10K), 585 (14K), 750 (18K), 916 (22K), or 999 (24K). If no stamp, a professional jeweler can test the purity.
A troy ounce (31.1035g) is slightly heavier than a standard avoirdupois ounce (28.3495g). Precious metals are always quoted in troy ounces. Our calculator handles all conversions automatically.
The calculator shows theoretical melt value based on spot price. Gold buyers typically pay 70-90% of melt value, depending on quantity, purity, and market conditions. Always compare offers from multiple buyers.
Yes, a kitchen scale measuring in grams can work for estimates. For more accurate valuations, consider a digital jewelry scale measuring to 0.01 grams — they're affordable and widely available online.
A pennyweight (DWT) is a traditional unit used in precious metals. One pennyweight equals 1/20 of a troy ounce, or approximately 1.555 grams. It's commonly used by jewelers and gold dealers in the US.