Savings Bond Calculator
Find out what your paper savings bond is worth. Enter the bond's series, denomination, and issue date, then click Calculate.
Note: This calculator gives an approximate estimate for study purposes. For electronic bonds,
always check the exact value in your TreasuryDirect account.
Please fill in a denomination and issue date first.
Series
Original amount
Years held
Interest rate used
Estimated current value
Estimated interest earned
Current Rates
Series EE Savings Bonds
2.40%
For EE bonds issued May 1, 2026 to October 31, 2026.
Series I Savings Bonds
4.26%
This includes a fixed rate of 0.90%. For I bonds issued May 1, 2026 to October 31, 2026.
How this estimate works
This calculator uses simple compound interest as an approximation: it takes the number of full years between your issue date and today, applies the current annual rate for that series, and compounds it once per year.
Real Treasury bonds compound semi-annually and I bonds have a rate that changes every 6 months, so your actual bond's real value (found in the Savings Bond Calculator on TreasuryDirect.gov) may differ slightly from this estimate.