The U.S. Treasury spent nearly $2 for every dollar in nickels and pennies it put into circulation last year. That means for every dollar you have in pennies it actually cost $1.83 to produce and for every dollar in nickels it cost $1.88. Putting the same amount of dimes and quarters into circulation cost the Treasury less than 50 cents.
Production Of Pennies, Nickels Cost Taxpayers $105 Million In 2013 ? Consumerist