Silver Melt Value Calculator
Estimate the melt value of junk silver coins, sterling silver, and bullion. Enter the current silver spot price, pick your items and quantities, and set the dealer buy percentage to see what a buyer might pay.
Calculate the Silver Melt Value of Coins, Sterling, and Bullion
Silver Melt Value Formula
Where:
- \(V\) — total melt value in USD
- \(P\) — silver spot price per troy ounce (\(\$\)/ozt)
- \(q_i\) — quantity of item \(i\)
- \(\mathrm{ASW}_i\) — actual silver weight of one piece, in troy ounces
- \(w\) — weight of one piece in the chosen unit
- \(f\) — conversion factor to grams (1 for grams, 1.5552 for pennyweights, 31.1035 for troy ounces)
- \(p\) — silver purity as a decimal, e.g. 0.900 for 90% coin silver or 0.925 for sterling
The formula multiplies the pure silver content of your items, expressed in troy ounces, by the current spot price. For coins, the published actual silver weight (ASW) already accounts for both the coin's total weight and its purity, so no extra calculation is needed.
Silver Melt Value – Calculation Example
Example: you have 20 pre-1965 US quarters, the spot price of silver is 32.00 dollars per troy ounce, and a dealer offers 90% of melt value.
\[ \mathrm{ASW} = 20 \times 0.18084 = 3.6168\ \text{troy oz} \; (= 3.6168 \times 31.1035 \approx 112.50\ \text{g}) \]
\[ V = 32.00 \times 3.6168 = 115.7376 \approx \$115.74 \]
\[ \text{Payout} = 115.7376 \times 0.90 = 104.164 \approx \$104.16 \]
Result: the 20 quarters contain 3.6168 troy oz (112.50 g) of pure silver. The full melt value is $115.74, and at a 90% buy rate the dealer would pay about $104.16 — equivalent to $28.80 per troy ounce.
How to use the calculator
- Enter the current Silver spot price per troy ounce in dollars. This tool does not fetch live prices, so check a reliable quote first.
- Under Silver items, choose an item from the first dropdown: a preset US coin (dime, quarter, half dollar, Kennedy half, war nickel, Morgan/Peace dollar), sterling silver, .999 fine silver, or a custom purity item. A new row appears automatically as you fill the last one, up to 10 items.
- Enter the Quantity for each item. Quantities must be whole numbers (for coins, one per coin).
- For sterling, .999 fine, or custom items, enter the Weight of a single piece, choose the Weight unit (grams, troy ounces, or pennyweights), and for custom items set the Silver purity in percent.
- Set the Dealer buy percentage — the share of melt value a buyer pays. Set it to 100% if you only want the full melt value.
- Read the results: total pure silver content in troy ounces and grams, total melt value, the dealer's price per troy ounce, and the estimated payout, plus an item-by-item breakdown table.
What is silver melt value?
Melt value is the intrinsic worth of the pure silver contained in a coin, piece of jewelry, or bar if it were melted down and sold at the current spot price. It ignores collectible (numismatic) value, craftsmanship, and dealer premiums — it answers one simple question: how much is the actual metal in this item worth right now?
It matters because much of the silver in circulation is not pure. US coins minted before 1965 contain 90% silver and 10% copper, so a quarter is not worth its 0.9 troy-ounce face in silver — it contains 0.18084 troy oz of pure silver. Sterling silver is 92.5% silver alloyed with copper. A melt value calculator converts the total weight into pure silver content before applying the spot price, which is why you cannot simply weigh an item and multiply by the quoted price.
The result gives you a floor value when buying or selling. dealers and coin shops typically quote "junk silver" (worn 90% US coinage) as a percentage of melt value, often 70–95% when buying and at or above melt when selling. Knowing the melt value before you negotiate keeps you from accepting an offer that is far below the metal's worth — or overpaying when buying.
Silver is also held by some investors as a store of value. If you are comparing silver's long-run performance against cash, our inflation calculator can show how the purchasing power of a dollar changes over time.
Actual silver weight of common US silver coins
| Item | Total weight | Purity | Pure silver (troy oz) |
|---|---|---|---|
| US dime, pre-1965 | 2.50 g | 90% | 0.07234 |
| US quarter, pre-1965 | 6.25 g | 90% | 0.18084 |
| US half dollar, pre-1965 | 12.50 g | 90% | 0.36169 |
| Kennedy half, 1965–1970 | 11.50 g | 40% | 0.14792 |
| War nickel, 1942–1945 | 5.00 g | 35% | 0.05626 |
| Morgan/Peace dollar | 26.73 g | 90% | 0.77344 |
These are the published mint weights; the calculator uses them for the preset coin options so no weighing is required.
Assumptions, limitations and practical tips
- Spot price is not the payout. The result at 100% is the theoretical full melt value. Real buyers pay a discount, and sellers of small amounts rarely get spot — the dealer buy percentage field is there to model realistic offers.
- Wear reduces weight. Heavily circulated coins lose metal. The presets use full mint weights, so very worn "junk silver" may contain slightly less silver than calculated. For critical valuations, weigh loose rounds or bars directly with the weight-based options.
- Coins with numismatic value can be worth more than melt. Key-date or well-preserved coins may fetch multiples of melt from collectors. Never sell rare coins for melt value without checking their collectible worth.
- Purity assumptions are nominal. Sterling is taken as exactly 92.5% and coin silver as exactly 90%. Items marked "coin silver" (90%) or European standards like 800 silver should be entered through the custom purity option with their actual fineness.
- Check the spot price close to your transaction. Silver prices move daily, sometimes several percent intraday; a stale quote makes even a perfect calculation inaccurate.
- Sales taxes may apply. Depending on your state, buying physical silver can be subject to sales tax, which raises your cost above spot.
Frequently Asked Questions
How do I calculate silver melt value by hand?
Multiply the pure silver weight in troy ounces by the spot price. For an unknown item, weigh it, then compute \( \text{ASW} = w \times p / 31.1035 \), where \(w\) is the weight in grams and \(p\) is purity as a decimal (0.925 for sterling, 0.999 for fine silver). Then multiply ASW by the spot price per troy ounce. For coin presets, published ASW values do this work for you.
What is the difference between a troy ounce and a regular ounce?
A troy ounce weighs 31.1035 grams, while a standard (avoirdupois) ounce weighs 28.35 grams — about 10% less. Silver and other precious metals are always quoted per troy ounce. If you weigh items on a kitchen scale showing regular ounces, convert first: 1 troy oz = 1.097 regular oz. Mixing up the two is one of the most common calculation mistakes and overstates or understates value by roughly 10%.
What dealer buy percentage is a good deal when selling junk silver?
For common 90% US coinage, reputable dealers typically pay 70–95% of melt value, with small amounts toward the lower end and larger lots toward the top. Offers below 70% leave money on the table; offers at or above 100% of melt are rare for sellers outside of high-premium markets. Compare quotes from several buyers, and remember coin shops usually beat pawn shops and mail-in services.
Which US coins contain silver, and how can I tell?
Dimes, quarters, and half dollars dated 1964 or earlier are 90% silver. Kennedy halves from 1965–1970 are 40% silver, and nickels dated 1942–1945 with a large mint mark on the reverse are 35% silver ("war nickels"). A quick check: pre-1965 coins have a distinct silver-gray edge with no copper stripe, unlike clad coins, which show a visible copper-colored band on the rim.
Why does my heavily worn coin calculate higher than it should?
The coin presets use full mint weights, but circulated coins lose metal over decades of use — heavily worn "junk silver" can weigh 1–2% less than mint condition. The difference is small for worn quarters and dimes, but on large quantities or valuable silver dollars it adds up. For precision, weigh a sample of your coins on a gram scale and use the custom weight option with the actual purity instead.
Is my silver-plated item worth calculating?
No — silver-plated items have only a microscopic layer of silver bonded to base metal, so their melt value is effectively zero. Sterling silver is a solid 92.5% silver alloy throughout and is marked "925" or "STERLING." Other solid standards like 800 silver (80% pure, common in European pieces) or 900 "coin silver" have real melt value — enter those through the custom purity option. A magnet will not distinguish them, as neither sterling nor plate is magnetic.
Do I pay tax when selling silver at melt value?
In the US, selling precious metals at a profit may create a capital gain you must report, since the IRS treats silver as a collectible — long-term gains are taxed up to 28%. The dealer may also file Form 1099-B for large sales of certain bullion items. Sales tax on the purchase side depends on your state. This is general information, not tax advice — consult a tax professional about your situation.