One dollar is equal to 100 cents. These 100 cents are equal to 100 pennies, 20 nickels, 10 dimes, four quarters or two half-dollars. Both one-dollar bills and dollar coins equal $1.
One hundred cents in pennies weighs approximately 8.82 ounces. Stacked on top of one another, they have a height of about 6 inches. Stretched out end to end, they have a length of 75 inches, the equivalent of 6.25 feet. The first U.S. penny was minted in 1792. Made exclusively of copper, it was larger than the current penny and featured the picture of a Lady Liberty on its front. As of 2014, the penny consists of 2.5 percent copper, and the remaining portion is zinc.