Day Counter
Days between dates, with or without weekends and holidays.
Bond price, current yield and yield to maturity.
How the price moves with rates
| Market yield | Price | Against face |
|---|
Bond price
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The Bond Calculator solves in both directions: price from a required yield, or yield to maturity from a price. It reports current yield alongside YTM and explains whether the bond is trading at a premium or a discount, and why.
Enter the face value, coupon rate, years to maturity and either the price or the required yield, and the calculator returns the other along with current yield, total coupon income and whether the bond trades at a premium or a discount.
Bond prices move inversely to interest rates, and this calculator is the clearest way to see why. A bond paying a five percent coupon in a market demanding seven must sell below face value, because the discount is what makes up the shortfall in income. Yield to maturity is the figure that captures both the coupons and that price movement, which is why it is the standard comparison measure and why current yield, which ignores the capital element entirely, can be seriously misleading on a bond bought away from par.
Enter a market yield to get the price, or a price to get the yield to maturity.
Current yield ignores the pull to par entirely, which makes it misleading on any bond bought away from face value.
Why a five percent coupon must sell below par in a seven percent market, shown rather than asserted.
Annual, semi-annual or quarterly, which changes both the price and the effective yield.
Coupons over the life of the bond plus the capital gain or loss at maturity.
Face value, annual coupon rate, years to maturity and the coupon frequency.
Enter a market yield to get the price, or a price to get the yield to maturity.
Current yield from coupons alone, and yield to maturity including the price movement.
A price above face is a premium, below is a discount, and the calculator explains which and why.
The total annualised return if you buy at the current price and hold to maturity, counting every coupon and the gain or loss between price and face value. It is the standard way to compare bonds.
A bond fixed at an old, lower coupon is less attractive when new bonds pay more. Its price falls until the discount raises its effective yield to match the market, which is the mechanism behind the inverse relationship.
Current yield is the annual coupon divided by the price, ignoring maturity entirely. YTM includes the pull to par as the bond approaches maturity, so on a bond bought at a discount or premium the two differ substantially.
The price is above face value, which happens when the coupon exceeds current market rates. You collect above-market income but take a capital loss at maturity, and YTM accounts for both.
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