TBillLab

T-Bill Price Calculator

Find the purchase price that delivers a target BEY.

Your T-bill numbers never leave your browser — all math runs locally.
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Try: Face value=1000, Target BEY=5, Days to maturity=182 → $1,000, 0.05%, $976, $24

How to use

Given the yield you want and the term, the calculator backs out the price you should pay: Price = Face ÷ (1 + BEY × days/365).

FAQ

Can I lock a yield?

Only at auction or on the secondary market; this tells you the price that matches your target.

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