T-Bill Calculator by Date
Price a T-bill from its auction and maturity dates.
Your T-bill numbers never leave your browser — all math runs locally.Try: Face value=1000, Purchase price=980, Days to maturity=182 → $1,000, $980, $20, 0.0396%, 0.0409%, 0.0409%
How to use
Count the calendar days from the issue date to maturity, enter that as days, and the calculator returns the yield.
FAQ
Where do I find the dates?
TreasuryDirect lists each bill’s auction date, issue date and maturity date.
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