The website About.com reports that a standard coin roll contains 50 dimes, which together have a value of $5. The value of a half roll of dimes, which contains 25 coins, is $2.50, while the value of a double roll of dimes, which contains 100 coins, is $10.
There are two names for a regular roll: the shotgun roll and the regular roll. A roll of pennies, like a roll of dimes, can hold fifty individual coins, but its face value is only one dollar and fifty cents. A roll can hold forty nickels, which are sold for $2, or it can hold forty quarters, which are sold for $10. A roll can hold a total of 20 fifty-cent pieces, which together have a value of ten dollars.