Silver spot value calculator
Find the live spot value of any silver — bullion, sterling, or 90% junk coins — against the current spot price. Enter a weight and purity, or just count your US coins.
How silver spot value works
Spot value is the raw metal value of an item — what the silver itself is worth at the current spot price, before any premium or dealer spread. The math is three steps:
spot value = spot price/ozt × weight in troy oz × purity
The calculator handles the conversions for you: grams, kilos, pennyweight, and standard ounces all convert to troy ounces (the unit bullion trades in — 31.103 grams). Purity scales it to the pure silver content: a sterling piece is 0.925, US junk silver is 0.90, and investment bullion is 0.999 or finer.
How much silver is in US “junk” coins?
| Coin | Silver | Pure silver |
|---|---|---|
| Dime (1964 & earlier) | 90% | 0.0715 ozt |
| Quarter (1964 & earlier) | 90% | 0.17875 ozt |
| Half dollar (1964 & earlier) | 90% | 0.3575 ozt |
| Half dollar (1965–70) | 40% | 0.1479 ozt |
| War nickel (1942–45) | 35% | 0.05626 ozt |
| Morgan / Peace dollar | 90% | 0.77344 ozt |
A quick rule of thumb: $1 of face value in 90% coins ≈ 0.715 troy oz of silver. Multiply your face value by 0.715, then by the live spot price, for a fast estimate — or use the coin counter above for an exact figure.
Spot value is the floor — see what dealers charge over it
Live cash/wire premiums on real silver products, ranked lowest first.
Common questions
How is silver spot value calculated?
Spot value = the current silver spot price per troy ounce × the pure silver content of your item. Convert the weight to troy ounces, multiply by the purity (for example 0.90 for US junk silver, 0.999 for bullion), then multiply by the live spot price. This calculator does all three steps live.
How much silver is in 90% junk silver?
By the standard trading convention, $1 face value of 90% US silver coins contains about 0.715 troy ounces of pure silver. A silver dime is about 0.0715 ozt, a quarter 0.17875 ozt, and a half dollar 0.3575 ozt. War nickels (1942–45) are 35% silver at about 0.05626 ozt each; 1965–70 half dollars are 40% silver.
Is spot value the same as what a dealer will pay?
No. Spot value is the raw metal value only. Dealers buy below spot on generic material to cover their spread, and pay a premium above spot for recognized bullion coins. Spot value is your baseline — compare it to a dealer's live buy and sell prices to see the spread.
Does spot value include the premium?
No. Spot value is just the metal. The premium over spot — what you pay above spot for a finished coin or bar — is separate. See our live premiums to compare what dealers actually charge over spot right now.
Spot is fetched live and spot values update against it. Coin silver contents follow standard US Mint specifications. Informational only — not investment or tax advice, and not a dealer buy quote. See our methodology. Spot reference: https://stackerspot.com/calculators/silver-spot-value.