Most wheat pennies are worth about 3 cents a piece. There are a few semi keys to watch for like the 11S, 12S, 13S, 14S, 15S and the 24D. There all worth $10 to around $50. And then the key dates are the 09S, 09SVDB, 14D, 22 plain D, and the 31S three all worth around $100 to a couple thousand for the 09SVDB. You best bet is to go to Barnes and Noble and go to the magazine section and buy a "Coin Prices" price guide for 5 bucks.