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Gold Calculator
Estimate the melt value of physical gold from the live XAU/USD spot price: enter a weight in grams, troy ounces, kilograms, tola or baht and pick the purity.
Estimated melt value$1,411.69
Pure gold content10.00 g
Price per gram (pure)$141.17
XAU/USD spot used$4,390.86
This is the metal (melt) value only. Jewelry, coins and collectibles usually trade above melt for craftsmanship or rarity, and dealers buy below spot. It is not an offer price.
Set a price alert on the live XAU/USD page
Value of 10 g by purity
Live melt value of 10 grams of gold at each common karat grade, from the current XAU/USD spot price.
| Purity (karat) | Gold content | Value of 10 g |
|---|---|---|
| 24K | 99.9% | $1,411.69 |
| 22K | 91.7% | $1,294.05 |
| 21K | 87.5% | $1,235.23 |
| 18K | 75.0% | $1,058.77 |
| 14K | 58.3% | $823.49 |
| 10K | 41.7% | $588.20 |
How it works
Weight in grams = Weight × Unit factor
Pure gold = Weight in grams × (Karat ÷ 24)
Melt value = Pure gold × Spot ÷ 31.1035Worked example
Ten grams of 24K gold at a $2,400 spot price is worth 10 × $2,400 ÷ 31.1035 ≈ $771.62. At 18K (75% purity) the same piece contains 7.5 g of pure gold, worth about $578.71.
FAQ
How is the value of gold calculated?
The spot price quotes US dollars per troy ounce (31.1035 g) of pure gold. Convert your weight to grams, multiply by the purity (karat ÷ 24) to get pure gold content, then multiply by the spot price per gram.
What do the karat grades mean?
24K is pure gold (99.9%). Lower karats are alloys: 22K is 91.7% gold, 18K is 75%, 14K is 58.3% and 10K is 41.7%. Only the gold fraction carries melt value.
What are tola and baht units?
They are traditional gold weights still widely used in bullion markets: one tola (South Asia) is 11.6638 g and one baht (Thailand) is 15.244 g. The calculator converts them to grams automatically.
Will a dealer pay me the calculated value?
Usually not exactly. Dealers buy below spot to cover refining and margin, while jewelry often sells above melt value for craftsmanship. Use the result as the metal-value baseline for negotiating.
Why can I value gold in INR and AED?
Those are the most-used quote currencies for physical gold in South Asia and the Gulf. Melt value is converted from the live XAU/USD spot using the USD cross, so the result is not shown until that rate is available — you will not see a dollar amount flash for a rupee or dirham account.
Is 24K exactly 100% gold?
The formula treats 24K as karat ÷ 24 (pure). Labels show 99.9% fine, which is how bullion is typically sold. Lower karats use the same ratio: 22K is 91.7%, 18K is 75%.
Can I set a price alert on gold?
Yes. Use Set price alert on the result, or follow the XAU/USD link to the gold page and create an alert there.
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