Disclosure

Transparency about links, funding, data, and advice — per FTC guidance.

ibondrate is free. Some outbound links — for example to brokerages, high-yield savings accounts, or money tools — may be affiliate links: if you sign up through them we may earn a commission at no extra cost to you. Paid links are marked rel="sponsored nofollow".

We only link to things we'd actually use, and a commission never changes what the calculator reports. Every figure follows the published methodology.

Not financial advice. ibondrate is an informational calculator that performs arithmetic on published U.S. Treasury rates. It does not know your tax situation, goals, or other holdings, and it does not recommend whether to buy, hold, or sell. Dollar amounts are estimates; for the official value and for decisions about your money, use TreasuryDirect and consider a licensed professional. We are not affiliated with the U.S. Treasury or TreasuryDirect.

Your privacy: this is a static, client-side tool. Your issue date and amount are processed in your browser and are never uploaded — there is no backend and nothing is logged.