Per the latest U.S. Mint report, it costs less than six cents to make a dime ($0.0576). To make a quarter, it cost about 15 cents ($0.1468), and nearly 34 cents for a half-dollar ($0.3397).
But there’s a problem with his plan: Phasing out the penny could result in needing to make more nickels, and the US Treasury Department loses far more money on every nickel than it does on every penny ...