US Bond Maturity Calculator
Prices a bond from its coupon, face value, yield and remaining term, separating the clean price from the dirty price by the interest accrued since the last coupon, and reports current yield and the effective annual yield.
Your figures
Updates as you typeHow this is worked out
4 steps
- Coupon = 1000 × 5% ÷ 2 = 25 each period
- Yield per period = 6% ÷ 2 = 3%
- 10 coupon(s) and the redemption, valued at the next coupon date = 986.0695
- On a coupon date nothing has accrued, so clean and dirty are both 957.35
Its 3 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
2 sources
What this calculator does
Prices a bond from its coupon, face value, yield and remaining term, separating the clean price from the dirty price by the interest accrued since the last coupon, and reports current yield and the effective annual yield.
How to use US Bond Maturity Calculator
Enter Face value, Annual coupon rate, Required yield (nominal annual), Coupons a year, Years to maturity and Fraction of the current period already elapsed. The calculator checks the values, applies the stated method, and updates the result without saving your figures.
What the result means
The result includes Clean price, Dirty price (what settles), Accrued interest, Coupon payment, Current yield (on the clean price), Nominal annual yield, Effective annual yield, Quoted price per 100 of face, Coupons remaining and Premium or discount to par. Review the visible working and any warnings before using the answer for a decision.
Method and checks
The method cites Texas Instruments BA II Plus guidebook, bond worksheet (printed pages 72-73 and 78); SIFMA / MSRB, clean and dirty price conventions. Its 3 built-in worked examples are checked on every full test run. The initial answer and working are rendered on the server, so they remain readable without JavaScript.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator