Credit Card Payoff Calculator
Find your exact debt-free date, total interest cost, and a full month-by-month payoff schedule. See how extra payments — or a faster target date — change everything. Free, instant, in any currency.
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How Credit Card Interest Actually Works
Credit card interest compounds monthly on whatever balance you're carrying. Your annual rate (APR) is divided by 12 to get a monthly rate, and that rate applies to your remaining balance every single month — which is why balances that seem manageable can grow surprisingly fast if payments are too low.
Negative Amortization — When Your Balance Grows Despite Paying
To avoid this, your payment must always exceed the monthly interest charge — this calculator checks for that automatically and won't run the numbers until your payment genuinely makes progress.
Why Minimum Payments Are a Trap
Minimum payments are typically set at 1-2% of your balance or a small fixed amount, whichever is higher — deliberately low so most of your payment goes toward interest rather than your actual debt. On a genuinely large balance, paying only the minimum can realistically take well over a decade to clear, and cost significantly more in total interest than the original balance itself.
Two Ways to Use This Calculator
- Fixed Payment mode. Enter what you plan to pay each month (plus any extra) to see exactly when you'll be debt-free and how much total interest you'll pay.
- Target Payoff Date mode. Know exactly when you want to be debt-free? Enter your target number of months and the calculator works backward to tell you the exact payment required to hit that goal.
How to Pay Off Credit Card Debt Faster
- Pay more than the minimum, always. Even a modest extra amount each month makes a dramatic difference over the life of the debt — use the Extra Payment field to see your specific impact.
- Pay fortnightly instead of monthly. Splitting your monthly payment into two fortnightly payments effectively adds one extra full payment per year.
- Target the highest-rate card first if you're juggling multiple cards — this is the avalanche method, and our Debt Payoff Calculator handles multiple debts with strategy comparison.
- Consider a 0% balance transfer if you qualify — this pauses interest accrual entirely for a promotional period, letting every payment go toward principal.
FAQs
How is credit card interest calculated?
Your APR is divided by 12 to get a monthly rate, applied to your remaining balance each month. This is why balances grow quickly when payments are too low — the interest compounds on itself.
What is negative amortization?
It’s when your payment doesn’t cover the month’s interest charge, so your balance actually grows instead of shrinking despite you paying every month. This calculator warns you if your numbers fall into this trap.
What's the difference between Fixed Payment and Target Payoff Date mode?
Fixed Payment shows how long a chosen payment amount will take. Target Payoff Date works backward — tell it when you want to be debt-free, and it calculates the exact payment required.
How much extra should I pay each month?
Any amount above the minimum helps significantly. Enter different extra payment amounts to see the exact trade-off between payoff speed and total interest cost for your specific situation.
What is a good credit card interest rate?
Average credit card APRs in 2026 sit above 21%. Anything near or above that is considered high — if your rate is significantly above average, a balance transfer to a lower-rate card is worth investigating.
Should I pay off credit card debt or save money first?
Generally pay off high-interest credit card debt first — a 20%+ APR costs more than almost any realistic investment or savings return. Maintain a small emergency buffer, then focus aggressively on the debt.
Can I use this for multiple credit cards?
This calculator handles one card at a time. For comparing strategy across multiple debts, use our Debt Payoff Calculator, which supports the snowball and avalanche methods across several balances.
Is this calculator free?
Yes completely free with no sign-up needed.