Bond Equivalent Yield Calculator
Result
Bond Equivalent Yield Calculator Calculate the bond equivalent yield (BEY) of a discount instrument like a T-bill, annualizing the return on a 365-day basis. Enter the face value, purchase price, and days to maturity to get the annualized yield. — free online calculator.
Formula
- Enter the values shown in the calculator. The result follows the stated formula and assumes consistent units and input definitions.
- The main inputs are Face Value, Purchase Price, Days to Maturity. Enter them in the units and format shown in the calculator.
- Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Bond Equivalent Yield
- Face Value: 1000
- Purchase Price: 970
- Days to Maturity: 180
Example inputs: Face Value = 1000; Purchase Price = 970; Days to Maturity = 180. Calculated result: Bond Equivalent Yield: 6.27%.
Sample result: Calculating…
Frequently asked questions
What does the Bond Equivalent Yield calculate?
This annualizes a simple holding-period return; market conventions may differ by instrument.
Which values should I enter?
Enter Face Value, Purchase Price, Days to Maturity using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Bond equivalent yield (%) = ((face value − purchase price) ÷ purchase price) × (365 ÷ days to maturity) × 100..
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.