About this calculator

Debt Payoff Calculator is a free page for one job: estimate how long a list of debts takes to pay off, and what changes if extra money goes to the highest rate or to the smallest balance.

What you can do here

Add up to ten debts. Each row needs a name, a balance, an APR, and the minimum you pay. An extra monthly amount is optional. The page then runs two plans side by side, avalanche and snowball, and lists a month-by-month schedule for the one you are looking at. The sample rows on the calculator are stand-ins so the page is not empty. Replace them with your own figures.

Credit cards, personal loans, car loans, student loans, and medical balances all use the same three inputs. A mortgage can be entered the same way. Many people leave the mortgage out of a consumer-debt plan because the payment and the term dwarf the other rows, which hides the effect of an extra $50 on a card. That is a budgeting choice. The calculator does not enforce it.

Where the math happens

The plan is calculated in your browser after the page has loaded. Nothing you type is sent to a server, stored in an account, or kept for the next visit. Reload and the sample debts come back. There is no login and no saved portfolio. The privacy policy states that directly, including the one place ads are loaded (the calculator homepage) and the pages where the ad script is left out.

Interest each month is the balance at the start of the month times the APR divided by 12. Minimums are the dollar amounts you type, held flat rather than recomputed as a percentage of a falling balance. Extra money is aimed at one debt at a time. The order, the rollover of a finished debt's minimum, and the things the model skips are written up in How this calculator works.

What this site is not

It is not a lender, a debt-settlement company, or a credit-counseling agency. It does not pull a credit report, quote a consolidation loan, or tell you that one method is the right one for your household. Avalanche usually costs less interest when the orders differ. Snowball sometimes clears a small balance sooner, which is a behavior question the spreadsheet cannot answer. When the two plans match, the label does not matter. The avalanche and snowball guide shows both situations with the assumptions next to the figures.

Results are estimates, not financial advice. An issuer that uses average daily balance, a grace period, or a shrinking minimum will not match this page to the cent. Use the schedule as a map, then check a payoff quote with the lender before you move money.

Who publishes it

The site is run by an independent publisher, not by a bank. There is no advisory credential claimed on this page, and there are no customer testimonials. Other small calculators from the same publisher are listed on Other tools. Two of them, a loan payoff chart and a compound-interest calculator, are also linked in the footer because they sit next to this topic. They are separate sites. Typing a balance here does not create an account there.

Corrections, privacy requests, and broken calculations go through the contact page.