Enter up to three debts to see how long it takes to pay them all off using the avalanche method (highest interest rate first), plus total interest paid.
A Debt Payoff Calculator helps you plan how to eliminate multiple debts, such as credit cards, personal loans, and other balances, by comparing different payoff strategies and showing how long it will take and how much interest you'll pay under each approach. Rather than treating each debt in isolation, this tool lets you see the full picture across all your debts combined, which is essential for building an effective payoff plan.
The calculator applies compound interest to each individual debt balance based on its own interest rate, then allocates any extra payment amount according to the chosen strategy: the avalanche method directs extra payments toward the highest-interest debt first, while the snowball method directs extra payments toward the smallest balance first, in both cases making minimum payments on all other debts simultaneously.
Enter each of your debts along with its balance, interest rate, and minimum payment, then specify how much extra you can put toward payoff each month. The calculator returns a month-by-month plan showing exactly which debt to prioritize, how long full payoff will take, and the total interest paid under your chosen strategy.
Example 1: Someone with a 50,000 credit card balance at 36% interest and a 200,000 personal loan at 14% interest, using the avalanche method, would direct all extra payments toward the credit card first, since its much higher interest rate makes it the most expensive debt to carry.
Example 2: The same person using the snowball method would instead pay off the smaller 50,000 credit card balance first regardless of its interest rate, gaining an early psychological win before moving on to tackle the larger loan, even though this approach typically costs slightly more in total interest.
The avalanche method prioritizes the highest-interest debt first to minimize total interest paid, while the snowball method prioritizes the smallest balance first to build psychological momentum through quick wins, even though it may not be mathematically optimal in terms of total interest saved.
The avalanche method typically saves more money in total interest, making it the mathematically superior choice, though many financial counselors acknowledge the snowball method's psychological benefits can lead to better real-world adherence for some people, since early wins can sustain motivation over a long payoff journey.
Debt consolidation can simplify payments and potentially lower the overall interest rate if you qualify for a favorable consolidation loan, though it's important to compare the total cost carefully, since a longer consolidated term can sometimes increase total interest paid despite a lower rate.
Minimum payments are typically calculated to cover mostly interest with only a small amount toward principal, meaning balances shrink very slowly, which is why directing any extra available money specifically toward payoff dramatically accelerates the overall timeline.
Most financial advisors recommend maintaining at least a small emergency fund even while aggressively paying off debt, since having zero savings can force you back into high-interest debt the moment an unexpected expense arises, defeating the purpose of the payoff effort.
Each debt's balance is tracked independently with its own specific interest rate applied monthly, ensuring that the calculation accurately reflects how quickly each individual balance grows if left unpaid, which is essential for correctly prioritizing which debt to target first.
Yes, applying a one-time lump sum payment toward your priority debt whenever extra money becomes available can meaningfully accelerate your overall payoff timeline beyond what your regular monthly extra payment alone would achieve.
A missed payment typically results in the balance continuing to accrue interest as normal, potentially along with a late fee, both of which extend the actual payoff timeline beyond what the calculator originally projected, which is why maintaining consistent payments is critical to the plan's success.
It's worth recalculating whenever your income, expenses, or extra payment capacity changes meaningfully, or at least every few months, since your progress and remaining balances shift over time and a refreshed calculation keeps your plan accurate and motivating.
Yes, moving high-interest debt to a lower-interest card or loan can accelerate payoff by reducing the interest portion of each payment, though it's important to account for any transfer fees and to stay disciplined about paying down the transferred balance before any promotional rate expires.