For a callable bond, the conservative return estimate isn’t yield to maturity or yield to call alone — it’s whichever of the two is lower, since the issuer will only call when it benefits them.
How it works
The approximate-yield formula is applied twice — once to the maturity scenario and once to the call scenario — and the lower of the two results is the yield to worst.
What this does not include
This does not include bonds with multiple call dates, where a full yield-to-worst calculation would need to check every call date, not just one — this calculator compares a single call scenario against maturity.
How to use this calculator
- Enter the bond’s current price, face value, coupon, years to maturity, call price, and years to call.
Frequently asked questions
Why do bond investors focus on yield to worst instead of yield to maturity?
Because a callable bond might never actually reach maturity — planning around the worse of the two scenarios avoids being surprised by an early call that cuts the holding period short.
When is YTC likely to be lower than YTM?
Typically when a bond trades at a premium above its call price and rates have fallen since issuance — the issuer has strong incentive to call and refinance at the now-lower rate.
Does yield to worst apply to non-callable bonds?
No — without a call feature, yield to maturity is simply the only relevant yield scenario, so yield to worst and yield to maturity are identical.
