Savings Bond Calculator & Inventory

Find out what your paper U.S. savings bonds are worth today — using the Treasury's official redemption values (updated ) — and keep your whole collection in one saved list.

Official Treasury data Series EE · I · E · Savings Notes 🔒 100% private — nothing leaves your browser Works in Chrome & Edge (inventory saves!)

Value one bond

Values come from the U.S. Treasury Savings Bonds Value Files dataset (public domain). The 3-month interest penalty for bonds under 5 years old is already included, exactly as at your bank.

My bond inventory

SeriesFaceIssuedSerial #ValueInterestStatus
$0.00Total value today
$0.00Total interest earned
0Bonds
0Matured (cash these!)
Free: 3 bonds. Pro ($19.99 one-time): unlimited bonds, CSV export, printable PDF report for estates, banks & taxes. No subscription.

🔒 Your inventory is stored only in this browser (localStorage). We never see your bonds or serial numbers. Bookmark this page — your list will be here when you return. Unlike the TreasuryDirect calculator, saving works in Chrome, Edge, Safari and Firefox.

How much is my savings bond worth?

The value of a U.S. savings bond depends on three things printed on its face: the series (EE, I, E, or Savings Note), the denomination (face value), and the issue date. Every May and November the Treasury publishes official redemption tables with the exact cash-in value of every bond for the next six months. This calculator reads those same tables — the numbers you see here are the numbers your bank uses when you cash the bond.

Why matured bonds matter

Savings bonds stop earning interest at final maturity — 30 years after issue (40 years for the oldest Series E bonds). Billions of dollars in matured, zero-earning bonds are sitting in American drawers and safe-deposit boxes. If any bond in your list shows “matured”, it will never grow again — cash it and put the money to work. Our inventory flags every matured bond automatically.

Keep an inventory that actually saves

The government's own calculator warns that inventories it creates “cannot be saved” in Google Chrome or Microsoft Edge — the browsers 9 in 10 people use. This tool stores your bond list right in your browser, privately, with no account. Add every bond once; every time you come back, today's values are recalculated automatically.

Frequently asked questions

Is this calculator accurate?
Yes. Values come directly from the U.S. Treasury's official Savings Bonds Value Files — the same public-domain dataset banks use. Data currency is shown at the top of the page.
Is my bond information private?
Completely. Everything is calculated in your browser. Your bond list and serial numbers are stored only on your device and are never transmitted anywhere.
Can I value electronic (TreasuryDirect) bonds?
Electronic bonds already show their current value inside your TreasuryDirect account. This tool is for paper bonds — the ones you physically hold.
My bond is less than a year old — why no value?
By law, savings bonds cannot be cashed during the first 12 months, so the Treasury publishes no redemption value for them yet.
What does the Pro upgrade add?
Unlimited bonds in your inventory (free covers 3), CSV export, and a clean printable PDF report — useful for estates, bank visits, and tax records. It's a $19.99 one-time purchase, not a subscription.

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