Gold and silver together
One composition model handles pure bullion, alloys, sterling silver, crown gold, and variable electrum without pretending that equal masses have equal value.
Precious metals and coinage
Treasure
Calculate gross mass, purity, fine gold and silver content, historical coin models, and optional melt value while keeping physical metal separate from money and collecting.
Treasure result
Gross mass1 g
Fine goldWithheld
Fine silverWithheld
Other materialWithheld
Modern melt valueNot priced
Source: Treasure methodology.
Metal content is not monetary value. A coin can have a denomination, gross mass, fine-metal content, historical purchasing power, market melt value, and collector value. Treasure calculates only the quantities explicitly shown.
Coins remain dated objects
Presets identify whether a number is a nominal weight model or one measured specimen. Wear, clipping, corrosion, debasement, and reform remain relevant.
Prices remain optional
User-entered spot prices produce a modern melt estimate. Historical purchasing power and numismatic premiums are outside this calculation.
Open the Weight converter · Read the method · Review the new research library