How to use the Credit Card Payoff calculator
- Enter your numbers. Fill in card balance, apr, i want to, monthly payment.
- Read your results. Results update instantly. The headline shows the debt-free in; the breakdown and table below show the details.
How credit card interest works
Card issuers charge interest daily, but a monthly approximation (APR ÷ 12 applied to the balance) is very close for planning. If your payment is less than one month’s interest, the balance never goes down, and the calculator will tell you.
The formula
where B is the balance, P the monthly payment and r the monthly rate. The calculator simulates month by month so the final, smaller payment is handled exactly.
Ways to pay it off faster
- Stop adding new charges to the card you’re paying down.
- A 0% balance-transfer card can help if you can repay within the promo period (watch the 3%–5% transfer fee).
- Even $50 more per month can cut years and hundreds of dollars of interest.
Worked example
With these inputs: card balance$6,000; apr22.9%; i want toPay a fixed amount; monthly payment$250.
The calculator gives a debt-free in of 2 yr 9 mo (around Jul 2029). Other results: monthly payment$250.00, total interest$2,101, total paid$8,101, interest this month$114.50.
What your results mean
The payoff time shows how long your balance lasts at a fixed payment, assuming no new charges. If the result says “Never,” your payment doesn’t cover the monthly interest, so the balance will keep growing.
Tips
- Stop adding new charges to the card you are paying down.
- Pay more than the minimum: minimums are often about 1–3% of the balance plus interest, which stretches payoff out for years.
- A 0% balance-transfer card can help if you can repay within the promo period; include the transfer fee in your math.
Frequently asked questions
How is credit card interest calculated?
Most issuers apply a daily periodic rate (APR ÷ 365) to your average daily balance. This calculator uses the monthly equivalent (APR ÷ 12), which is very close for planning.
Is it better to pay off one card at a time?
Yes, typically: pay minimums on all cards and send extra money to one. Use the debt payoff calculator to compare avalanche and snowball order.
Why does paying only the minimum take so long?
Minimums are often just interest plus 1% of the balance, so most of the payment goes to interest.
Does this include new purchases?
No. It assumes no new charges and a constant APR.
Avalanche or snowball for several cards?
Use the debt payoff calculator to compare both strategies.
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