// multi-utility computation suite · offline · instant · precise
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finance.debt-bond-duration Calculator
Calculates Macaulay and modified duration for a personal debt management fixed income position from coupon, maturity, and yield. Modified duration is the price sensitivity to yield changes — a duration of 8 means the bond price falls approximately 8% for each 1% rise in yields.
Inputs
Balance
Reference formula or conversion factor shown for context.
Rate
The rate at which interest accrues. Small differences compound dramatically — compare carefully when choosing between lenders.
Payment
Reference formula or conversion factor shown for context.
Results
months to payoff
Number of monthly payments needed to clear the balance at the given payment amount.
total paid
Sum of all payments made — principal plus all interest. Subtract the loan amount to see the pure interest cost.
interest cost
The total monetary cost computed for the given inputs.