Silver Exchange Rate Calculator

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Silver Exchange Rate Calculator

Grams (g) Troy Ounces (oz) Kilograms (kg)
.999 Fine Silver (Bullion) .958 Britannia Silver .925 Sterling Silver .900 Coin Silver (US Pre-1965) .800 European Silver .500 British Pre-1947
Standard exchange fees for scrap silver range from 10% to 30%.

Valuation Summary

Actual Fine Silver Content: oz

Market Value (at Spot): $

Exchange Fees: $

Estimated Payout: $

How to Calculate Silver Exchange Rates

Calculating the true value of your silver requires understanding three distinct variables: the gross weight of your items, the purity of the metal (fineness), and the current market "spot" price. Unlike currency exchange, precious metal exchange involves physical processing and refining costs.

Understanding Silver Fineness

Silver used in jewelry and coins is rarely 100% pure because silver is naturally very soft. To make it durable, it is alloyed with other metals (usually copper). Common purities include:

  • .999 Fine: Pure silver used in investment-grade bars and rounds.
  • .925 Sterling: The standard for high-quality jewelry and silverware (92.5% silver).
  • .900 Coin: Used in United States dimes, quarters, and half-dollars minted before 1965.

The Calculation Formula

The exchange value is determined by the following logic:

  1. Conversion: Convert the total weight to Troy Ounces (1 Troy Oz = 31.1035 Grams).
  2. Fine Weight: Multiply the weight by the purity decimal (e.g., 100g x 0.925 = 92.5g of pure silver).
  3. Gross Value: Multiply the fine weight by the current spot price.
  4. Net Payout: Subtract the dealer's spread or "buy-back" fee.

Example Calculation

If you have 500 grams of Sterling Silver (.925) and the spot price is $24.00/oz, with a 15% dealer fee:

  • Total Weight in Troy Ounces: 500 / 31.1035 = 16.07 oz
  • Fine Silver Content: 16.07 x 0.925 = 14.86 oz
  • Market Value: 14.86 x $24.00 = $356.64
  • Exchange Payout: $356.64 – 15% = $303.14
function calculateSilverValue() { var rawWeight = parseFloat(document.getElementById('silverWeight').value); var unit = document.getElementById('weightUnit').value; var purity = parseFloat(document.getElementById('silverPurity').value); var spot = parseFloat(document.getElementById('spotPrice').value); var feePercent = parseFloat(document.getElementById('dealerFee').value) || 0; if (isNaN(rawWeight) || isNaN(spot) || rawWeight <= 0 || spot <= 0) { alert("Please enter valid positive numbers for weight and spot price."); return; } // Convert everything to Troy Ounces (the standard for spot pricing) var weightInTroyOz; if (unit === 'grams') { weightInTroyOz = rawWeight / 31.1034768; } else if (unit === 'kilos') { weightInTroyOz = rawWeight * 32.1507; } else { weightInTroyOz = rawWeight; } // Calculate fine silver content var fineSilverWeight = weightInTroyOz * purity; // Calculate Market Value var marketValue = fineSilverWeight * spot; // Calculate Fees and Final Payout var feeAmount = marketValue * (feePercent / 100); var finalPayout = marketValue – feeAmount; // Display Results document.getElementById('fineWeightResult').innerText = fineSilverWeight.toFixed(3); document.getElementById('marketValueResult').innerText = marketValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('feeResult').innerText = feeAmount.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('payoutResult').innerText = finalPayout.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('silverResult').style.display = 'block'; }

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