The value of a bar of silver will depend on both the weight of the bar and the purity of the silver itself. In general, silver is going for $17-19 per ounce. If you try and sell, you will get slightly less than this because whatever company buys the bar will want to make a profit when they resell it to the next customer. One single bar of silver is going to cost about ten to sixteen dollars. It pays about thirteen fifty for an ounce. It is kind of cheap but it is something.