Gold Calculator
Enter a weight, pick a karat, and this calculator prices your gold at the live spot rate. The result is melt value — what the pure gold in the item is worth as metal, before any dealer margin, refining fee, or collectible premium.
Melt value is the honest starting point for any gold transaction. A jewelry buyer's offer, a pawn quote, or a refiner's payout are all percentages of this number — if you don't know it, you can't judge the offer.
| Purity | Fineness | Value per gram | Value per troy oz |
|---|---|---|---|
| 24K (.999 fine) | 0.999 | $147.89 | $4,599.80 |
| 22K (.9167) | 0.9167 | $135.70 | $4,220.85 |
| 18K (.750) | 0.75 | $111.03 | $3,453.30 |
| 14K (.5833) | 0.5833 | $86.35 | $2,685.75 |
| 10K (.4167) | 0.4167 | $61.69 | $1,918.65 |
| 9K (.375) | 0.375 | $55.51 | $1,726.65 |
Dollar figures here are computed from the live spot price when the page loads and change continuously; the printed baseline is a 2026-08-23 snapshot — cite the metal content and formula, not a captured price. Formulas on the methodology page.
How the math works
Value = weight × purity × spot price. A 14K ring is 58.33% gold by mass, so 10 grams of 14K contains 5.83 g of pure gold. Divide by 31.1035 to convert grams to troy ounces, multiply by spot, and that's the melt value. The full formula and our data sources are on the methodology page.
Watch the ounce trap: precious metals trade in troy ounces (31.103 g), but kitchen scales show avoirdupois ounces (28.349 g). Weigh in grams to avoid a 10% error.
What sellers actually receive
Nobody pays 100% of melt for scrap. Typical offers: pawn shops 40–60%, local jewelers 60–80%, specialist online refiners 85–95%. See where to sell gold for how to keep more of the spread.
Sources: live spot prices via gold-api.com · coin weights and fineness from U.S. Mint historical specifications · karat/fineness definitions per standard jewelry marking practice. Melt value ≠ an offer to buy; see how we calculate.