Metal Treasury
Free tools for precious metals.
Straightforward calculators and reference material for gold, silver, platinum and beyond, built for anyone weighing scrap, checking a dealer's offer or valuing what's in the drawer.
The toolkit
One tool is live today and the rest are on the way. Each one is designed to answer a single question without burying it in options.
Gold Calculator
LiveLive spot price, any weight unit and karat, a running list of pieces and a percentage-of-total check.
Open toolSilver Calculator
SoonThe same workflow for sterling, coin silver and scrap, priced per troy ounce.
Platinum & Palladium
SoonValue platinum group metals, including the purities used in jewellery and catalytic converters.
Purity Reference
SoonHallmarks, karat-to-fineness conversions and what the stamps on your jewellery actually mean.
Coin & Bullion Weights
SoonGold content of common coins and bars, from Sovereigns and Krugerrands to kilo bars.
Base Metals
SoonCopper, brass and aluminium pricing for scrap, offcuts and salvage.
Why Metal Treasury
Genuinely free
Every tool works in full, straight away. No account, no trial, no export paywall.
Live pricing
Spot prices refresh automatically while you work, and your figures re-price with them.
Nothing collected
Calculations run in your browser. What you enter stays on your device.
Know what your gold is worth.
Weigh it, pick the karat, and see the number in seconds, in dollars, euros or rupees.
Start calculating