Value of a Bond Calculator

Bond Price Formula:

\[ P = \sum_{t=1}^{n} \frac{C}{(1 + r)^t} + \frac{F}{(1 + r)^n} \]

Face Value (F):

currency units

Coupon Rate:

decimal

Yield to Maturity:

decimal

Years to Maturity:

years

Payments per Year (m):

Bond Price (P):

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1. What is the Bond Price Formula?

The bond price formula calculates the present value of all future cash flows from a bond, including periodic coupon payments and the final face value payment at maturity. It's fundamental to fixed income security valuation.

2. How Does the Calculator Work?

The calculator uses the bond pricing formula:

\[ P = \sum_{t=1}^{n} \frac{C}{(1 + r)^t} + \frac{F}{(1 + r)^n} \]

Where:

\( P \) — Bond price (currency units)
\( C \) — Periodic coupon payment = (coupon rate × F) ÷ m (currency units)
\( r \) — Periodic yield to maturity = yield ÷ m (decimal)
\( t \) — Period number (unitless)
\( F \) — Face value (currency units)
\( n \) — Total number of periods = years × m (unitless)
\( m \) — Payments per year (unitless)

Explanation: The formula discounts all future cash flows back to present value using the required yield as the discount rate.

3. Importance of Bond Valuation

Details: Accurate bond pricing is essential for investors, portfolio managers, and financial institutions to determine fair value, assess investment opportunities, and manage interest rate risk.

4. Using the Calculator

Tips: Enter face value in currency units, coupon rate and yield as decimals (e.g., 5% = 0.05), years to maturity, and select payment frequency. All values must be positive.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between bond price and yield?
A: Bond price and yield have an inverse relationship. When yield increases, bond price decreases, and vice versa.

Q2: What happens when coupon rate equals yield?
A: When coupon rate equals yield to maturity, the bond trades at par value (price = face value).

Q3: How does payment frequency affect bond price?
A: More frequent payments generally increase the bond's price slightly due to faster cash flow receipt.

Q4: What is duration and convexity?
A: Duration measures bond price sensitivity to interest rate changes, while convexity measures how duration changes with yield.

Q5: Can this calculator handle zero-coupon bonds?
A: Yes, set coupon rate to 0. The formula simplifies to only the present value of the face value.