How much is a fifty dollar savings bond wortht hat was bought in 1986?

The value of a $50 savings bond purchased in 1986 depends on the type of bond it is. For example, a Series EE bond issued in 1986 would have a value based on its interest accrual and would likely be worth significantly more than its face value today, potentially around $150 to $200, depending on the specific terms and when it was cashed. To get an exact value, you can use the U.S. Treasury's bond calculator or check with a financial institution.