Online Calculator

Bond Calculator

Two directions: enter YTM to price a bond, or enter market price to solve implied yield to maturity.

Fair price

$1,019.72

Premium over face
$19.72

Assumes next coupon exactly one period away.

How the Bond Calculator works

The calculation follows the standard method used across the US — no shortcuts, no hidden assumptions. Here is exactly what happens behind the scenes:

Formula

P = Σ C/(1+y/m)^t + F/(1+y/m)^n

Frequently Asked Questions

Why did my bond lose value when rates rose?

Fixed coupons compete with new-issue yields; prices fall until older bonds match market returns. Longer maturities swing harder (duration).

Coupon vs yield?

Coupon is fixed at issuance relative to face value. Yield reflects today's price — premium bonds yield less than coupon, discounts more.