Someone tells you your grandfather's quarters are "worth something because they're silver". They are half right — and it is worth understanding which half. A coin with precious-metal content holds two values simultaneously: what the metal itself would bring as raw material, and what a collector would pay for the coin as an object. This guide explains the first — how melt value is computed and when it controls the price — without quoting a single live figure.
Nothing here is investment advice, and metal prices move constantly. This is the concept: once you can do the arithmetic yourself, no headline or listing can inflate what you already know how to check.
Two kinds of value on one coin
Melt value is the market value of the coin's metal content if it were sold as raw metal — weight times fineness times the going price, with the units matched first. Collector value (numismatic value) is what a buyer pays for the coin as a coin: its issue, date, mint mark, condition and demand. The two coexist on the same object, and a coin's real-world price usually tracks whichever is higher.
The collector side has its own evidence machinery — published price guides compile dealer-retail figures by issue and grade. NGC describes its U.S. price guide as average dealer retail prices compiled from documented market transactions for certified coins; that is a different number from melt, computed on different evidence. NGC: U.S. Coin Price Guide FAQs The value-drivers guide explains the four forces behind the collector side.
Whether your coin even contains precious metal is a separate question — a physical one, answered by composition checks rather than arithmetic. The silver-checks guide covers the non-destructive sequence, including which dated U.S. issues were struck in a 90% silver alloy. Once composition is reasonably established, this guide's arithmetic is what it feeds.
What bullion means for a coin
The Royal Australian Mint's glossary defines bullion coins as coins made from precious metals, often valued by weight rather than face value. That phrasing carries the whole idea: a bullion coin's stamped denomination is a legal formality, while its price tracks the metal inside. Royal Australian Mint: Coin Glossary
"Junk silver" is the market's informal label for the other end of the same idea: ordinary, circulated silver coins — common dates in worn condition — bought and sold in bulk for their metal content. The name is slang, not a dismissal of the coins; it means their price rides on metal rather than on collectors competing for the issue.
A useful mental test: if a dealer would buy the coin without looking at its date, it is being priced as bullion. If the date and mint mark change the offer, collector value is in play.
How melt value is computed (concept, not a live figure)
The calculation has three inputs and one unit conversion:
- Total weight — weigh the coin in grams, or read the official specification for a confident identification. The U.S. Mint publishes weights and compositions for its current circulating denominations; older issues have their own documented standards. U.S. Mint: Coin Specifications
- Fineness — the fraction of the coin that is the precious metal. A coin struck in a 90% silver alloy contributes nine-tenths of its weight.
- Today's metal price — quoted per troy ounce (about 31.1 grams, not the 28.35-gram grocery ounce). Because the price is per troy ounce, convert the precious-metal weight before multiplying: grams × fineness ÷ 31.1 gives troy ounces, and that figure times the quoted price is melt value.
A worked example keeps it concrete — for a U.S. silver-era coin such as a Washington quarter dated 1932–1964: the Mint's documentation records a 6.25-gram standard weight at 90% fineness for that issue, so it holds 5.625 grams of silver — about 0.18 troy ounces. Multiply 0.18 by whatever silver trades for today and you have that coin's melt value. Worn examples weigh less than the as-struck specification, so a scale reading refines the estimate downward. U.S. Mint: 2014 Biennial Report, Appendix 4, NGC: The Coinage of 1837
Melt value in three inputs
Grams on a scale, or the as-struck specification for a confident issue
The precious-metal fraction — 90% silver means nine-tenths of the weight counts
Today's price per troy ounce — convert grams to troy ounces first (÷ 31.1); the price moves daily
Editorial formula; produces a figure only when you supply today's metal price. Evidence: U.S. Mint: Coin Specifications; NGC: U.S. Coin Price Guide FAQs.
Two honest adjustments complete the picture. First, dealers commonly buy below melt and sell above it — refining costs and a margin live between you and the quoted metal price, so melt is a reference point, not a checkout figure. Second, melt value erases the coin: it prices the metal as if the object did not exist, which is exactly the wrong lens for a coin collectors care about.
When numismatic value still dominates
Metal sets the floor only where the collector premium is thin: common dates, heavy wear, abundant surviving supply. The same silver quarter that is "worth its melt" in a common date can sit far above melt in a scarce one — that difference is collector demand, and it belongs to the drivers in the value-drivers guide, not to this formula.
So the sequence matters: identify the issue first (a provisional photo match plus a composition check gives you the two inputs a melt-versus-collectible comparison needs), then ask whether this issue has any collector premium at all. A coin worth only its metal is honestly worth only its metal — but you cannot know that until the identification is done. The identification guide covers that step, and the selling guide covers routes once you know what you hold.
Questions people ask
Is my silver coin worth at least its melt value?
Roughly, often — common circulated silver issues tend to trade near their metal content — but buyers typically pay less than melt and the honest answer needs the composition confirmed first. The silver-checks guide covers that, including when a professional test is worth it.
Where do I check today's melt value?
Compute it: weight in grams × fineness ÷ 31.1 (grams per troy ounce) × today's metal price. Dealer and reference sites publish melt calculators that do the same arithmetic. We deliberately quote no figure here — it would be stale within a day.
Does "junk silver" mean the coins are rubbish?
No — it is market slang for circulated silver coins traded for metal content rather than collector interest. The same coins can carry collector premiums in better dates or condition, so identify before assuming the label fits.
Can a coin be worth less than melt?
A coin's metal is worth its metal — but what you can sell it for is a different question. Dealer margins, refining costs and verification doubts all sit below the melt figure, which is why "melt value" describes the material, not the exit price.
Does Coin Says Hi give melt values?
No. It can offer a provisional match — an issue hypothesis with visible clues — which is one input the calculation needs. Composition still has to be established the way the silver-checks guide describes, and the metal price comes from the market, not from a photo. Try a reading to get the issue hypothesis, then do the arithmetic.
Sources and scope
The U.S. Mint's specifications table supplies the weights and compositions used in the calculation inputs; its 2014 biennial appendix plus NGC's Coinage of 1837 support the bounded 90%-silver example (Washington quarters dated 1932–1964). The Royal Australian Mint's glossary supplies the bullion definition, and NGC's price-guide FAQ describes the dealer-retail basis of a major U.S. price guide. The melt formula, dealer-margin and floor framing are Coin Says Hi's editorial explanation — no live prices are quoted, melt value changes daily, and nothing here is investment advice or a valuation of your coin. Sources last checked 2026-10-01.
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