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Debt Payoff Calculator

Plan paying off all your debts with extra payments, highest rate first or smallest balance first, rolling paid-off payments into the rest.

Change the values and press Calculate to work out your own figures.

Add each debt and any extra you can pay.

Debts One row per debt or card.

Row 1
Row 2
Row 3
Row 4
Avalanche pays the least interest.
Rolling over pays off sooner.
Changes how amounts are shown, not the math; your choice is remembered on this device.
Paid on top of the regular payment.
Paid at every 12th payment.
A lump sum once.
When the one-time extra is paid; 1 if blank.
Result
Debt-free in
11 years 4 months
Total interest
$72,852.67
Total paid
$356,852.67
Order
highest rate first

Every debt is paid off in 11 years 4 months.

Show the working
  1. each month: interest, then every minimum, then the rest to the target debt

How to use it

Add each debt and any extra you can pay.

Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.

Key facts

each month: interest, then every minimum, then the extra (and freed payments) to the target debt

Questions

How long do CN's four default debts take with $100 extra a month?

11 years 4 months.

Reviewed by RK Calculator Team. Updated 2026-09-26.

Formulas

each month: interest, then every minimum, then the extra (and freed payments) to the target debt

Sources

Limitations

  • Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
  • Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.

Formula version 0.1.0Reviewed