A debt payoff calculator estimates how long it will take to become debt free based on your balances, interest rates, minimum payments, and any extra monthly payment. This pay off debt calculator compares debt snowball and debt avalanche strategies so you can choose the payoff plan that fits your goals.
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Calculator inputs
Sample values are loaded so you can test the debt payoff calculator immediately. Replace them with your own balances, APRs, and minimum payments to get a custom payoff plan.
Debt 1
Debt 2
Debt 3
Choose a payoff method
Monthly payoff budget
$640.00
Minimum payments: $390.00 + Extra: $250.00
Debt reduction chart
The chart compares your debt snowball calculator results against your debt avalanche calculator results using the same balances and monthly budget.
Side-by-side comparison
For this mix of balances and APRs, both strategies finish at the same time with the same interest cost.
Snowball
Pays the smallest balance first so you can score quick wins and build momentum.
Debt-free in
2 years
Interest paid
$1,785.47
Payoff order
Store Card -> Rewards Card -> Medical Bill
First account paid off: Store Card in 4 months.
Avalanche
Pays the highest interest rate first to cut interest costs as aggressively as possible.
Debt-free in
2 years
Interest paid
$1,785.47
Payoff order
Store Card -> Rewards Card -> Medical Bill
First account paid off: Store Card in 4 months.
Payoff timeline
Use this timeline to see which debt disappears first and how long each remaining balance takes to clear.
This balance is fully paid off after 4 months.
This balance is fully paid off after 1 year, 2 months.
This balance is fully paid off after 2 years.
How to use this calculator
This free debt free calculator works best when you include every debt you plan to pay off with the same monthly budget.
Add every balance, APR, and minimum payment so the calculator can model your real monthly payoff plan.
Switch between the debt snowball and debt avalanche methods, then add any extra monthly payment you can make.
Compare payoff order, months to debt-free, total interest, and the balance chart to choose the strategy you prefer.
FAQ
These answers cover the most common questions people ask when choosing between debt snowball and debt avalanche strategies.
The debt snowball method attacks your smallest balance first, while the debt avalanche method targets your highest interest rate first. Snowball can feel more motivating because you eliminate accounts sooner, while avalanche usually saves more money on interest.
Debt avalanche usually saves the most money because it reduces the balances charging the highest APR first. If two strategies finish at different times, the one with lower total interest is the cheaper path.
Yes. Even a small extra monthly payment reduces principal faster, shortens your payoff timeline, and lowers the total interest you pay over time.
This calculator gives a solid planning estimate based on monthly compounding, fixed minimum payments, and consistent extra payments. Your real payoff timeline can differ if your APR changes, fees are added, or your minimum payment rules change.
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