Example 1
$15,000 at 7%, $300 a month
Payoff takes about 61 months with roughly $3,100 in interest.
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Debt Payoff Calculator
See exactly when you'll be debt free. Enter your balance, interest rate, and monthly payment to get started.
Debt details
Enter your debt info to see when you'll be debt free.
$
%
$
Months to pay off
50 mo
Total interest paid
$4,714.12
Total amount paid
$14,714.12
Payoff summary
Estimated debt-free date: December 2030
Paying $300.00/month at 19.99% APR, you'll be debt free in 4 years and 2 months.
Calculator guide
How It Works
The calculator simulates repayment month by month. Each month it adds interest to the balance using your annual rate divided by 12, then subtracts your payment. It repeats until the balance reaches zero, counting the months and totaling the interest along the way. If your payment does not exceed the monthly interest, the balance would never shrink, and the calculator flags it.
Debt balance is what you currently owe. Interest rate is the annual percentage your lender charges, which determines how much of each payment disappears into interest. Monthly payment is what you commit to paying, and it is the input you control most. Even a small increase can cut months or years off your timeline. Running different payment amounts shows the real trade-off between monthly cash flow and how quickly you become debt-free, which is the heart of any repayment decision for student loans, personal loans, or other balances.
For a deeper explanation, read How to Calculate Your Total Loan Payoff Timeline.
What the Numbers Mean
- Months to pay off
- Your timeline. A long timeline means the payment barely beats interest; a short one means fast progress.
- Total interest
- The cost of carrying the debt. High interest is a signal to pay more or refinance.
- Total amount paid
- Balance plus interest. The closer it is to your balance, the more efficient your plan.
- Payoff date
- The month you become debt-free, useful for setting milestones.
Common Scenarios
Example 2
Raise to $450
The same debt clears in about 38 months, saving about $1,200.
Example 3
$8,000 at 18%, $150
It takes about 89 months and costs over $5,100 in interest.
Frequently Asked Questions
What's the difference between the avalanche and snowball methods?
The avalanche method pays off the highest-interest debt first, saving the most money overall. The snowball method pays off the smallest balance first, building momentum through quick wins.
How much do extra payments speed up the payoff timeline?
Extra payments applied directly to principal shorten the payoff timeline and reduce total interest paid. Even modest additional amounts each month create a meaningful difference over time.
Should all debts get paid off at the same pace?
Prioritizing one debt at a time while making minimums on others typically clears balances faster than spreading extra payments evenly. The calculator shows how prioritization changes the overall timeline.
Does this calculator account for different interest rates across debts?
The calculator factors in each debt's specific interest rate and balance to determine the most efficient payoff order.
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