Coin Silver
Coin Silver Calculator
Free coin silver calculator. Estimate .900 coin silver and 90% U.S. junk silver melt value by weight and live silver spot price.
Use the calculatorAbout .900 coin silver
Coin silver is .900 fine - 90% pure silver. It is the alloy used in pre-1965 U.S. dimes, quarters, and half dollars ("junk silver"), as well as many older American flatware and hollowware pieces.
Enter the weight to estimate melt value at the live silver spot price. For bags of junk silver, weighing the lot is faster and often more accurate than counting face value.
Worked example at an illustrative silver spot of $58.00 per troy ounce (use the live price above for current figures):
How to calculate .900 coin silver value
- Weigh the item. Use a digital gram or pennyweight scale. Heavier, solid pieces give the most reliable estimate.
- Select the metal and purity. Pick gold, silver, or platinum, then choose the karat or fineness. Use Custom to enter an exact percentage.
- Confirm the live spot price. The calculator fills in the current spot price automatically. Edit it if you use a different quote.
- Calculate and adjust payout. Press Calculate to see the melt value, then move the payout slider to model a buying offer.
Coin Silver Calculator questions
How much is 90% silver worth per gram?
At a $58 silver spot, one gram of .900 coin silver holds about $1.68 in melt value (1 ? 31.1035 ? 0.900 ? $58).
How much silver is in a pre-1965 quarter?
A 90% silver quarter contains roughly 0.1808 troy ounces of pure silver. Weighing the coins and using the .900 setting gives a precise lot value.
What is "junk silver"?
Junk silver refers to common-date 90% silver U.S. coins with no collector premium - valued purely for their silver content.
Is coin silver the same as sterling?
No. Coin silver is .900 fine; sterling is .925. Use the matching purity so the melt estimate is accurate.