EE bonds are government sponsored savings certificates. They can be purchased at banks, from the U.S. Treasury at treasurydirect.com and through payroll savings plans. Paper EE bonds are sold at a cost of half the face amount, meaning a $50 bond initially cost $25. Bonds issued after April, 2005 have interest added every month. Earlier bonds earn interest twice a year. The current value of an EE bond cannot be calculated by hand.
Go to the savings bond calculator on the U.S. Treasury website at treasurydirect.com.
Select the denomination or face amount of the EE bond using the pull down menu. This is the value printed on the bond, not the cost.
Enter the serial number and issue date of the bond in the appropriate boxes on the calculator. A bond's serial number is in the lower right corner of the bond.
Click on the blue "Calculate" button below the calculator data box. The current value of the bond will be immediately listed.