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Coupon Rate Calculator

Calculate a bond's annual coupon rate and current yield from par value, market price, and periodic coupon payments with our free Coupon Rate Calculator.

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Understanding Bond Coupon Rates

The coupon rate of a bond is the annual interest rate paid by the bond issuer relative to its par (face) value. Expressed as a percentage, the coupon rate remains fixed throughout the bond's term and determines the annual interest income earned by bondholders.

How Coupon Rate and Current Yield Differ

While coupon rate is fixed to the bond's par value, current yield changes based on the bond's prevailing market price:

  • Coupon Rate: Stated annual coupon payment divided by face/par value.
  • Current Yield: Stated annual coupon payment divided by current market trading price.

Coupon Rate Formula:

$$\text{Coupon Rate (\%)} = \left(\frac{\text{Annual Coupon Payment}}{\text{Par Value}}\right) \times 100$$

Current Yield Formula:

$$\text{Current Yield (\%)} = \left(\frac{\text{Annual Coupon Payment}}{\text{Market Price}}\right) \times 100$$

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Frequently Asked Questions

What does trading at a discount mean?

A bond trades at a discount when its current market price is lower than its par value (e.g. trading at $950 when par is $1,000). When trading at a discount, the bond's current yield is higher than its stated coupon rate.

What does trading at a premium mean?

A bond trades at a premium when its current market price is higher than its face value (e.g. trading at $1,050 when par is $1,000). In this scenario, current yield is lower than the stated coupon rate.

Can a bond's coupon rate change over time?

Standard fixed-rate bonds have a constant coupon rate until maturity. Floating-rate bonds, however, have variable coupon rates tied to benchmark interest rates such as SOFR.

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