Credit Card Payoff Calculator
A credit card payoff calculator is a free online tool that estimates how long it takes to pay off your balance. It compares fixed monthly payments against minimum payments to show total interest and payoff timeline. Free, no sign-up required.
Card & Payment Details
Your Payoff Summary
At $300.00/mo
Over 37 months
Principal + interest
Required minimum
Interest vs. balance
Your fixed payment
How to Use This Calculator
- 1Enter your current credit card balance — the total amount you owe on the card today.
- 2Set the APR (annual percentage rate). This is shown on your statement; typical cards range from 15%–30%.
- 3Enter the fixed monthly payment you can commit to. This must exceed the first month's interest (balance × APR ÷ 12) to make progress.
- 4Review the Months to Payoff card — if it shows 'Never', your payment is too low; increase it until a finite timeline appears.
- 5Compare the Total Interest under your fixed payment against the minimum-payment scenario shown in the comparison chart.
- 6Use the Interest Share card to see how much of your balance is being consumed by interest (over 50% is a red flag).
- 7Read the AI-powered insights for personalized recommendations on balance transfers, consolidation, and payment strategy.
- 8Adjust the sliders to model scenarios — a $50 increase in your monthly payment often saves years and thousands in interest.
How It's Calculated
Credit card payoff is simulated month by month with declining-balance compounding: Each month: interest = balance × (APR ÷ 12) payment = min(monthlyPayment, balance + interest) principal = payment − interest balance = max(0, balance − principal) If monthlyPayment ≤ balance × (APR ÷ 12) on the first month, the payment does not cover the interest and the balance never decreases → payoff is impossible (the calculator reports Infinity / "Never"). Otherwise the balance declines each month until it reaches zero, and: totalPaid = sum of all monthly payments totalInterest = totalPaid − startingBalance interestShare = totalInterest ÷ startingBalance Example: $8,000 balance, 22% APR, $300/mo monthlyRate = 0.22 ÷ 12 = 0.018333 firstMonthInterest = 8,000 × 0.018333 = $146.67 Since $300 > $146.67, payoff is feasible. Months to payoff ≈ 37 Total interest ≈ $3,083 Interest share = 3,083 ÷ 8,000 ≈ 38.5% For comparison, paying only the $160 minimum on the same balance takes ~137 months and costs ~$13,885 in interest — more than the balance itself.
Key Terms
Frequently Asked Questions
Scenario Calculators
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