Our sources - Coins Per Roll

Every figure on this site comes from one of these pages. Dates are the days we read them.

Pages we opened and read (12 November 2026)

U.S. Mint: Coin Specifications. Weight, diameter, thickness, composition and edge of the penny, nickel, dime, quarter, half dollar and dollar coin. It also states that the one-cent coin is made exclusively for collectible sets.
U.S. Mint (Kids): Coin Count n’ Roll. Coins in a roll of quarters, dimes, nickels and pennies.
Bureau of Engraving and Printing: Currency FAQs. The weight of a note (about one gram, whatever the denomination) and how many double folds a note survives (about 4,000).
Bureau of Engraving and Printing: Circulating Currency. The denominations now printed: $1, $2, $5, $10, $20, $50 and $100.
Bureau of Engraving and Printing FAQ, an older copy archived on 15 October 2004 by the U.S. government web archive (webharvest.gov). The size of a note (2.61 by 6.14 inches), its thickness (.0043 inch), its weight (one gram) and the number of notes in a pound (454). This is an archived copy: the current bep.gov FAQ confirms the weight but does not repeat the thickness.
uscurrency.gov: history of American currency. The size of Federal Reserve notes, 6.14 by 2.61 inches.
U.S. Mint: Fort Knox. The standard gold bar, 7 by 3 5/8 by 1 3/4 inches, about 400 troy ounces (27.5 pounds).
Federal Register, 86 FR 22996 (30 April 2021). Good Delivery gold bars of 350 to 430 fine troy ounces with a fineness of 995, and 1 troy ounce = 31.1034768 grams.

Listed by a search, not yet opened by us

We have not read these pages ourselves. The figures they are said to support are shown on the site only with a note, and will be confirmed or removed.

U.S. Mint press release, 29 March 2004. Said to show a roll of half dollars worth $10 (20 coins).
Federal Reserve Board: report on the Presidential $1 Coin Program. Said to describe $25 rolls of dollar coins (25 coins).