Series EE Savings Bond Calculator

Estimate current value of a Series EE bond (compounded semi-annually). Enter purchase amount & date, and an annual interest rate you expect. The calculator applies the 20-year doubling guarantee automatically.

Enter the nominal annual rate (you may use historical average or current published rate).
Notes: U.S. Series EE bonds earn interest that compounds semi-annually. This tool uses a user-provided annual rate and compounds it semi-annually for the elapsed time. The official value depends on Treasury rates and historical fixed rates — this is an estimator. The 20-year doubling guarantee is applied per the bond’s terms (if applicable).