Calculators

• Gold Value CalculatorCalculate the value of gold jewellery, coins or scrap by weight, karat (24K–9K) and today's gold price. Per-gram, per-ounce and per-kilo results in USD, GBP, EUR and more.
• Silver Value CalculatorWork out what your silver is worth: enter weight and purity (999, 925 sterling, 900 coin silver) and get its melt value at today's silver price.
• Platinum Value CalculatorCalculate the melt value of platinum jewellery or bars from weight and purity (950, 900, 999.5) using today's platinum price.
• Gold Investment Return CalculatorSee what a gold investment would be worth today. Enter an amount and start date to get total return, annualised return (CAGR), and the inflation-adjusted result.
• Silver Investment Return CalculatorCalculate the historical return of a silver investment between any two dates since 1960, including annualised return and inflation-adjusted value.
• Gold vs Inflation CalculatorCompare gold's price change with US consumer price inflation over any period and see gold's real, inflation-adjusted return.
• Gold Weight ConverterConvert gold weights between troy ounces, grams, kilograms, tola, pennyweight and grains, with the value of each amount at today's gold price.
• Gold Purity CalculatorConvert karats (24K, 22K, 18K, 14K, 10K, 9K) to fineness and millesimal hallmarks, and calculate the pure gold content and value of any piece.
• Gold/Silver Ratio CalculatorCalculate the gold-to-silver ratio from any two prices and compare it with the historical range since 1960.
• Currency ConverterConvert between 30+ currencies using daily central-bank reference rates, with the date and source of every rate shown.
• Historical Value CalculatorLook up the price of gold, silver, platinum, oil or an exchange rate on any date since 1960 and see how it compares with today.

All calculators use the same reference prices and daily FX rates shown across MarketsGrid, with the data type and observation time labelled. Results are informational, not investment advice.