Scrap Silver Calculator
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Determine the exact raw silver value of your old silverware, jewelry, and constitutional coins. Use this Scrap Silver Calculator to compute pure silver content, convert weight measurements in grams, troy ounces, or pennyweights, and calculate melt payouts based on live silver spot market prices.
The Formula for Scrap Silver Value
Calculating the raw bullion melt value of scrap silver requires multiplying gross weight by silver purity decimal and live spot market prices:
Silver Purity Decimal = Hallmark Purity Rating (e.g., 925 Sterling = 0.925)
Fine Silver Weight (Grams) = Gross Weight (Grams) × Silver Purity Decimal
Raw Silver Melt Value = Fine Silver Weight (Grams) × (Live Silver Spot Price per Troy Ounce / 31.1035)
Estimated Cash Payout = Raw Silver Melt Value × Dealer Payout Percentage (75% to 88%)
Where:
- 925 Sterling Silver: 92.5% pure silver content.
- 900 Junk Silver (Pre-1965 US Coins): 90.0% pure silver content.
- 999 Fine Silver: 99.9% pure silver bullion.
- 31.1035: Conversion factor representing exact grams in one troy ounce.
Scrap Silver Purity & Value Benchmark Matrix
Refer to the lookup table below for benchmark purity levels and melt values per gram at a sample live silver spot price of $28.00 per troy ounce ($0.900 per pure gram):
| Silver Type / Hallmark | Purity % | Pure Silver / Gram | Melt Value ($28.00/oz Spot) | Est. Dealer Cash Offer (80%) |
|---|---|---|---|---|
| 800 Coin / Continental Silver | 80.0% | 0.800 grams | $0.720 / gram | $0.576 / gram |
| 900 Junk Silver (Pre-1965 US Coins) | 90.0% | 0.900 grams | $0.810 / gram | $0.648 / gram |
| 925 Sterling Silver (Jewelry & Flatware) | 92.5% | 0.925 grams | $0.833 / gram | $0.666 / gram |
| 999 Fine Silver (Bullion Bars) | 99.9% | 0.999 grams | $0.899 / gram | $0.719 / gram |
Step-by-Step Scrap Silver Calculation Example
Suppose you have a set of sterling silver flatware (knives, forks, spoons) weighing 500 grams gross weight, and live silver spot price is $30.00 per troy ounce ($0.9645/gram pure):
- Determine Sterling Silver Purity Factor: 925 hallmark = 0.925 (92.5% pure silver).
- Calculate Fine Silver Weight: 500 grams × 0.925 = 462.5 grams pure silver.
- Calculate Total Intrinsic Melt Value: 462.5 fine grams × $0.9645 per gram = $446.08 raw melt value.
- Estimate Dealer Payout (80% Refinery Offer): $446.08 × 0.80 = $356.86 cash offer.
Frequently Asked Questions
How can I identify genuine sterling silver flatware?
Look for official hallmarks stamped on the handles or undersides, such as “925”, “Sterling”, “Ster”, or European lion hallmarks. Silver-plated items often carry stamps like “EPNS”, “Silver Plate”, or “Community”.
Do silver plated items have scrap silver melt value?
No, silver-plated items contain an extremely thin layer of silver over base metals (brass or copper) and are generally rejected by refiners due to refining costs exceeding silver value.
What are pre-1965 U.S. silver coins worth in scrap silver?
Pre-1965 U.S. dimes, quarters, and half-dollars contain 90% silver. Every $1.00 in face value of pre-1965 90% silver coins contains approximately 0.715 troy ounces of pure silver.
Why do silver buyers pay a lower percentage than gold buyers?
Silver has a much lower value-to-weight ratio than gold, meaning shipping, handling, melting, and refining expenses represent a higher percentage of the total metal value.