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22 precise calculation tools for jewellers, goldsmiths, dealers and investors.
Calculate the exact value of your jewellery or scrap lots based on the LBMA spot price and your trade margin.
Open →Determine the exact weight of fine metal to add to reach your target purity (e.g. from 800‰ to 925‰).
Open →Instantly convert between gram, troy ounce, tola, kilogram, grain and all precious metal measurement units.
Open →Set your spread % on the spot price and instantly get the buy and sell prices to display.
Open →Calculate the real premium of a gold coin (Vreneli, Krugerrand, Maple Leaf, Philharmoniker) vs. the spot price.
Open →Anticipate metal loss during smelting and adjust your buying price to maintain profitability.
Open →Calculate the effective yield (%) after smelting and refining. Identify avoidable losses.
Open →Value your silver jewellery, cutlery and coins (800, 925, 999) based on the live silver spot price in CHF.
Open →Quickly calculate your net commission on any precious metals transaction.
Open →Apply margins, fees and Swiss VAT (7.7%) to get a compliant final price under Swiss precious metals law.
Open →Convert any purity between karats, millesimal fineness (e.g. 750‰) and percentage. Complete reference table.
Open →Start from the target purity and calculate how much fine metal AND master alloy to mix.
Open →Comparative melting table of all precious metals and their common alloys.
Open →Evaluate an entire batch in a single calculation with breakdown by quantity.
Open →Interactive gold price chart across multiple timeframes.
Open →Track the Gold/Silver Ratio in real time to identify entry points.
Open →Compare the evolution of purchasing power against gold over several decades.
Open →Compare the premium per gram of bars (1g to 1kg).
Open →Vreneli, Krugerrand, Maple Leaf, Philharmoniker — premium and liquidity comparison.
Open →Calculate the exact impact of VAT by product type under Swiss law.
Open →Generate a full balance sheet (purchase, melting costs, target margin, resale price) for a batch.
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