About Melt Calculator

Melt Calculator is a free tool from PlainsMadeCo, a one-person shop in Lincoln, Nebraska that builds software for coin collectors, stackers and dealers.

How the numbers work

Every coin's metal content is calculated from its official weight and purity: grams times purity, divided by 31.1034768 grams per troy ounce. Bullion coins use the fine content their mint states. Values are rounded only for display.

Gold and silver spot prices come from xaus.com and refresh automatically twice a day, around 7 AM and 3 PM Central. The bar at the top of every page shows when the last successful update happened, in your own time zone. If an update fails, the site keeps the last good price and flags it once it is more than a day and a half old.

Spot prices are indicative market prices, not a quote to buy or sell. You can type in your own spot price on any calculator, and it stays on your device.

Contact

Spot an error or want a coin added? Email ethanuhlir@gmail.com. Dealers looking for inventory software can see what PlainsMadeCo builds at plainsmadeco.com.