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Debt Payoff Calculator - Pay Off Debt Faster

Free debt payoff calculator to find how long to pay off debt and how much interest you'll pay. See how extra payments accelerate your debt-free date.

Debt Payoff Calculator

See when you'll be debt-free and how to get there faster

$

Total amount you currently owe.

%

Annual interest rate on your debt.

$

Amount you pay each month.

$

Additional amount you can pay each month (optional).

Payoff Plan

Enter your values to see results

and click the "Calculate" button

What is a Debt Payoff Calculator?

A debt payoff calculator shows how long it takes to pay off debt and how much interest you'll pay. By inputting your balance, interest rate, and monthly payment, you can see your debt-free date. Adding extra payments dramatically reduces both time and total interest. This tool is essential for creating a debt elimination strategy.

How to Use This Calculator

  1. Enter your current debt balance
  2. Enter the interest rate (APR)
  3. Enter your monthly payment amount
  4. Add extra payment to see faster payoff (optional)
  5. Click Calculate to see your payoff timeline

Debt Payoff Formula

Months = log(PMT/(PMT-P×r)) / log(1+r)

P = Principal (debt), r = Monthly rate (APR/12), PMT = Monthly payment. Your payment must exceed the monthly interest (P×r) or you'll never pay it off.

Frequently Asked Questions

What's the minimum payment I should make?
At minimum, your payment must exceed monthly interest (Balance × Rate / 12). A $10,000 debt at 18% APR accrues $150/month in interest. Paying only $150 means you'll never pay it off!
How do extra payments help?
Extra payments go directly to principal, reducing the balance that accrues interest. Even $50/month extra can save thousands in interest and years off your payoff time.
What is the debt snowball method?
Pay minimum on all debts, put extra money toward the smallest balance. When it's paid off, roll that payment to the next smallest. Provides psychological wins to stay motivated.
What is the debt avalanche method?
Pay minimum on all debts, put extra money toward the highest interest rate debt. Mathematically saves the most money, but may take longer to see progress on any single debt.
Should I save or pay off debt first?
If debt interest > savings interest (usually true), prioritize debt. But keep a small emergency fund ($1,000) to avoid new debt for emergencies. Then attack high-interest debt aggressively.
Is debt consolidation a good idea?
If you can get a lower interest rate and commit to paying it off (not accumulating new debt), yes. Balance transfer cards (0% intro APR) can help if you pay off during the promo period.
How do I stay motivated to pay off debt?
Track progress visually, celebrate milestones, find accountability (friend or community), calculate money saved from not paying interest. Focus on the debt-free future.
What debts should I pay off first?
Priority: 1) Debts in collections/at risk of repossession. 2) Highest interest rate debts (credit cards). 3) Lower rate debts (student loans, mortgages). Never skip minimum payments.

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