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Free online Treasury Bill Yield Calculator. Calculate bank discount yield (BDY), bond equivalent yield (BEY), and actual returns for 4/8/13/26/52 week T-Bills.
The Treasury Bill Yield Calculator is a free online tool that helps investors quickly calculate bank discount yield (BDY), bond equivalent yield (BEY), and actual returns for T-Bills. No installation required — runs entirely in your browser. Works on all major browsers and mobile devices. Built with pure front-end technology — no account needed, no plugins to download. All calculations happen locally on your device for maximum privacy.