How This Debt Payoff Calculator Works
This calculator shows how long it will take to pay off a debt — like a credit card, personal loan, or line of credit — based on your balance, interest rate, and fixed monthly payment. It also shows the total interest you'll pay before becoming debt-free.
Why Credit Card Debt Grows So Fast
Credit cards typically carry much higher interest rates than other types of debt — often 18-25% annually. Because interest compounds on your remaining balance, making only minimum payments can mean paying far more in interest than the original amount borrowed, and can take years to pay off.
Two Popular Payoff Strategies
- Avalanche method: Pay off the debt with the highest interest rate first while making minimum payments on others — this minimizes total interest paid
- Snowball method: Pay off the smallest balance first for quick psychological wins, then move to the next smallest — this can help with motivation and consistency
How Extra Payments Help
Even a small increase in your monthly payment can significantly reduce both your payoff time and total interest paid, especially on high-interest debt. Try increasing the monthly payment in the calculator above to see the difference.
Frequently Asked Questions
What if my monthly payment doesn't cover the interest?
If your payment is too low to cover the monthly interest charge, your balance will actually grow over time instead of shrinking. Make sure your payment exceeds your monthly interest cost.
Does this work for multiple debts at once?
This calculator is designed for a single debt balance. If you have multiple debts, calculate each separately, or add up your total balance and use a blended average interest rate for a rough combined estimate.
Should I pay off debt or invest first?
As a general guideline, it's often wise to pay off high-interest debt (above 8-10%) before investing, since guaranteed "returns" from avoiding interest usually beat typical investment returns. For lower-interest debt, this becomes more of a personal choice.