🪙 Coin Melt Value Calculator
Enter a coin's precious metal weight (in troy ounces), purity, and the current spot price per troy ounce to calculate its metal content (melt) value. This is a metal-content calculation only, not a numismatic appraisal or investment recommendation.
How the melt value is worked out
Melt value is the market price of the metal inside a coin, and nothing else. The page multiplies three numbers you supply:
melt = weight (troy oz) × (purity % / 100) × spot price ($ per troy oz)A Morgan or Peace dollar weighs 26.73 g, which is 0.85937 troy oz at 31.1035 g to the troy ounce. Enter 0.85937, purity 90 and spot 25, and the result is $19.34. The 0.7734 sitting in the weight box on load is that dollar's fine silver weight, already net of the 90%; leaving purity at 90 deducts the copper a second time and understates the coin at $17.40.
Which weight belongs in the box
Enter gross weight with the real fineness, or fine weight (ASW) with purity 100 - never a mix. United States 90% silver coinage, struck through 1964:
| Coin | Gross | Fineness | Silver (ASW) |
|---|---|---|---|
| Dime | 2.50 g | 0.900 | 0.07234 oz |
| Quarter | 6.25 g | 0.900 | 0.18084 oz |
| Half dollar | 12.50 g | 0.900 | 0.36169 oz |
| Dollar | 26.73 g | 0.900 | 0.77344 oz |
| War nickel | 5.00 g | 0.350 | 0.05626 oz |
Frequently asked questions
How much silver is in a 90% silver quarter?
0.18084 troy oz. The coin weighs 6.25 g gross, and 90% of that is 5.625 g of silver, which divided by 31.1035 g per troy ounce gives 0.18084.
Is melt value what a dealer will pay me?
No. Melt is the ceiling on the metal and the floor on the coin. Bullion buyers quote a percentage of melt on junk silver, and anything with a date or grade people collect is worth more than its metal, sometimes many times more.
Does this pull a live spot price?
It does not. Nothing on the page fetches a quote; the $25 is a placeholder written into the code. Check a spot price yourself and replace it, because melt moves exactly in proportion with it.