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Key Features
Instant Calculation
Get accurate results in real time with our optimized algorithm.
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Credit card debt compounds differently from an installment loan: there's no fixed term, just a balance, an interest rate, and whatever you choose to pay each month. That makes it easy to underestimate how long a balance will actually take to clear.
This calculator simulates your payoff month by month at a fixed payment amount, showing exactly how long it will take and how much interest you'll pay along the way.
How it works
Enter your current balance, your card's APR, and the fixed amount you plan to pay each month. The tool simulates the balance paying down month by month, accounting for interest accruing on the remaining balance each cycle.
- Enter current balance.
- Enter annual percentage rate (APR %).
- Enter fixed monthly payment.
- Click Calculate to see your results.
Examples
Paying off a $5,000 balance
A $5,000 balance at 22.99% APR paid down with a fixed $200 monthly payment takes about 35 months and costs roughly $1,871 in total interest.
Who should use it
- Planning how much to pay monthly to clear credit card debt by a target date.
- Seeing how much a higher monthly payment would save in total interest.
Industry applications
- Personal finance and debt management
- Financial counseling and coaching
Advantages
- Shows the real payoff timeline and total interest cost for a given fixed payment.
- Flags upfront if a payment amount would never actually pay off the balance.
Limitations
- Assumes a fixed payment and fixed APR, both of which can change in reality (variable rates, promotional periods).
- Doesn't account for new purchases added during the payoff period.
Common mistakes to avoid
- Making only the minimum payment, which is calculated to keep balances outstanding as long as possible.
- Not accounting for new purchases added on top of the existing balance being paid down.
Best practices
- Pay more than the calculated minimum whenever possible — even small increases meaningfully cut both time and total interest.
- Avoid adding new charges to a card you're actively paying down.
Tips
- If you have multiple cards, prioritize paying down the one with the highest APR first while maintaining minimums on the rest.