https://treasurydirect.gov/BC/SBCPrice?Denomination=50&DenominationList=&InterestList=&InterestRateList=&IssueDate=4/2004&IssueDateList=&IssuePriceList=&MaturityDateList=&NextAccrualDateList=&NoteList=&OldRedemptionDate=782&RedemptionDate=6/2006&SerialNumList=&SerialNumber=&Series=I&SeriesList=&ValueList=&Version=6&ViewPos=0&ViewType=Partial&YTDInterestList=&btnAdd.x=CALCULATE
Calculate the Value of Your Paper Savings Bond(s)
Serial #, Series, Denom, Issue Date, Next Accrual, Final Maturity, Issue Price, Interest, Interest Rate, Value, Note ...