How much is a bronze penny worth?

Answer 1

If you're referring to a U.S. cent, they were all made of bronze from mid-1864 to 1942 and again from 1944 to the middle of 1982(*).

That means there are hundreds of possible coins to choose from so more information is needed - the date, and if the coin is dated 1908 or later, whether it has a mint mark. To find the mint mark on a 1908 or 1909 Indian cent, look on the back under the wreath to see if it has a small "S". On Lincoln cents, look under the date for a D or S. Any cent that doesn't have a mint mark is normal, it was simply made in Philadelphia.

(*) To fill in the gaps, cents were made of steel in 1943 to save copper for the war effort, and the composition was changed to copper-plated zinc in 1982 because copper had become too expensive.