💰 Gold Value Calculator
Enter an item's weight, karat, and the current gold spot price to estimate its intrinsic melt value — works in grams, troy ounces, pennyweight, or kilograms.
🏅 Weigh, Set the Karat, Value It
What is a Gold Value Calculator?
It works out how much the actual gold in a piece is worth. Give it the weight and karat and the current spot price, and it converts to troy ounces, scales by purity, and returns the metal value — the same figure a refiner starts from when quoting scrap gold.
Use it to sanity-check a buy-back offer, compare a chain to its melt value, or ballpark an inheritance. Remember it's the intrinsic value only: craftsmanship, brand, gemstones, and dealer margins all move the real price up or down, so treat this as a guide and confirm with a reputable dealer.
❓ Frequently Asked Questions
How is the gold value calculated?
The tool converts your weight to troy ounces, multiplies by the purity (karat ÷ 24, but never above the hallmark: 24k is priced at 999 and 22k at 916), and multiplies by the gold spot price per troy ounce you enter. So a 10 g 18k piece at an example $2,000 spot is 0.3215 ozt × 0.75 × $2,000 ≈ $482. It reflects the raw metal (melt) value only. A troy ounce is 31.1035 g; a kitchen scale's ounce is the lighter avoirdupois ounce (28.35 g), so weigh in grams.
Does this include the craftsmanship or brand value?
No. It calculates the intrinsic gold content value only. A finished ring, designer piece, or antique can be worth well above melt because of design, brand, gemstones, and condition — and a dealer buying scrap will typically pay below melt to cover refining and margin.
Where do I find the current gold spot price?
Look up 'gold spot price per ounce' from a reputable bullion dealer or financial site — it's quoted per troy ounce in USD (or your currency). Paste that figure into the spot price field. Prices move constantly, so use a live number for an accurate estimate.
What's the difference between karat and fineness?
Karat measures purity in 24ths: 18k is 18/24 (75%), 14k is 14/24 (about 58.3%). Fineness expresses purity per thousand, so 18k is 750. The UK Assay Offices' hallmarking guidance lists gold finenesses of 999, 990, 916.6, 750, 585 and 375, so 'pure' 24k is 999, not 1,000. The calculator uses the lower of the karat fraction and the hallmark, so purity is never rounded up.