How this works
Three numbers decide when your debt ends: what you owe, what you pay each month, and the rate you pay it at. The calculator runs standard amortization math — the same formula banks use — and returns the exact month your balance hits zero.
Each month, interest is charged on whatever balance is left. Your payment covers the interest first, and whatever is left eats into the principal. Early on, most of your payment is interest. As the balance shrinks, more of each payment actually pays down the debt. That is why the last year of any payoff goes faster than the first.
Because all the math runs in your browser, nothing you type is sent anywhere. Your numbers do not leave this tab.
Why people share their debt-free date
Naming a specific date changes how debt feels. "Eventually" is a fog. "November 2027" is a deadline. When you tell someone else about it — a partner, a friend, the person you are building a life with — you turn a private number into a shared one. That is harder to walk away from.
People also share as a commitment device. An accountability partner who knows your target date will notice if things slip. And if the date comes out further than you hoped, sending it to someone is often the moment you decide to pay more.
What if my payment changes?
The calculator assumes the same payment every month at the same rate. Real life does not work that way. A bonus, a raise, a windfall, a slow month — all of those shift the real date. The number you see here is the best-case scenario at the inputs you entered, and it is useful for exactly that reason: it tells you what is possible.
If your payment changes often, use the full Debt Payoff Calculator to model extra payments, or the Unburden app to update your balance after every payment and watch the date move.
Rates this calculator handles well
- Credit card APRs (typically 18% to 29%)
- Personal loans (typically 7% to 25%)
- Student loan consolidations (typically 4% to 10%)
- Car loans (typically 5% to 12%)
- Buy Now Pay Later balances with interest (varies widely)
If you have several debts at different rates, this tool flattens them into one. For a more accurate picture across multiple debts, see the full calculator which handles Snowball and Avalanche separately.
Frequently asked questions
How does the Debt-Free By calculator work?
You enter three numbers: your total debt balance, your monthly payment, and your interest rate. The calculator runs standard amortization math with monthly compounding and returns the exact month your balance hits zero. It also shows total interest paid across the payoff period. The formula assumes you pay the same amount every month at a fixed rate. Real life changes, and the result updates instantly if you change any input.
Is this calculator accurate?
The math itself is accurate to standard financial formulas. The debt-free date it returns is a projection based on the inputs you provide. Accuracy depends on whether those inputs stay constant: the same rate, the same payment, no new charges, no missed payments. Credit cards with promotional rates, variable-rate loans, and any month where you pay less will shift the real date. Treat the result as your best-case scenario at the numbers you entered.
Why does my payment need to be larger than the interest?
If your monthly payment is equal to or less than the interest charged that month, none of your payment touches the principal. The balance stays flat or grows. The calculator flags this because, at those numbers, you are not actually paying the debt down. Increasing the monthly payment by any amount above the interest charge will start reducing the principal, and the calculator can project a real debt-free date.
Can I share my debt-free date with someone else?
Yes. After you calculate, the share buttons copy a link that pre-fills the form with the same numbers you used. Anyone you send it to lands on the same result you saw. Your numbers travel in the URL, so nothing is stored on our servers. If you do not want your inputs in the link, use the share message without the link.
Does this work for multiple debts?
This calculator treats all your debt as a single balance with one blended rate and one monthly payment. It is the fast version. If you want to track multiple debts separately, compare Snowball against Avalanche, and see a month-by-month payoff schedule for each debt, use
the full Debt Payoff Calculator. For a dynamic plan that updates as you pay, the
Unburden app handles multiple debts with live balance updates.