Professional Tools & Calculators
Supporting calculators for the jewelry bench and the workshop: casting weight, metal density, karat and purity, weight units and reference prices. Every calculator shows its formula, its assumptions and the time of any market data it uses.
Casting & Material Tools
Casting weight and metal conversion.
Jewelry Calculators
Jewelry weight and metal value.
Purity & Karat Tools
Karat, fineness and purity.
Weight & Unit Tools
Grams, tolas, troy ounces and more.
Precious Metal Prices
Gold and silver reference prices and charts.
Gold Price Calculator
Gold price per gram, 10 grams, tola, troy ounce and kilogram for any karat, in your currency.
Silver Price Calculator
Silver price per gram, tola, troy ounce and kilogram for common fineness grades.
Gold & Silver Price Charts
Recorded gold and silver prices over 1 day to 1 year, in your currency and unit.
Value Calculators
Metal value by weight and purity.
Gold Value Calculator
Reference value of gold by weight and purity, with pure-gold content.
Silver Value Calculator
Reference value of silver by weight and fineness.
Gold Buying Capacity Calculator
How much gold, in grams, tola and ounces, a budget covers at the reference price.
Precious Metal Value Estimator
Value a mixed lot of gold and silver items in one calculation.
Currency Converter
Reference exchange rates.