How the credit card payoff calculator works
Enter your balance, the APR, and the monthly payment you plan to make. The calculator applies each payment to interest first and the rest to the balance, month by month, until the debt hits zero.
It then shows your payoff date and total interest — and you can test what happens if you pay $50 more a month or move the balance to a lower-rate card.
Worked example: $8,000 at 22% takes 49 months
Owe $8,000 at 22% APR and pay $250 a month. It takes 49 months — just over four years — to become debt-free, and you'll hand the card company $4,158 in interest alone.
The minimum payment alone would stretch this out far longer. Every extra dollar you add goes straight to the balance once interest is covered — that's why even small increases in your payment shrink the timeline fast.
What to watch out for
New purchases restart the clock, so stop adding to the card while you're paying it down. Also check whether your rate is promotional — a 0% intro APR that jumps to 24% can blindside your plan.
If the balance feels unmanageable, a lower-rate personal loan or balance transfer may help — but only if you close the spending tap first. These figures are estimates, not financial advice.
Frequently asked questions
How is credit card interest calculated?
Most cards use the average daily balance method: your APR is divided by 365, then multiplied by your balance each day. Interest compounds daily, which is why a balance barely shrinks when you only pay the minimum.
Is it better to pay more than the minimum?
Always, if you can. The minimum mostly covers interest, so the balance barely moves. Even $25 or $50 extra a month goes directly to principal after interest is covered, cutting months — sometimes years — off your payoff.
Should I do a balance transfer?
A 0% balance transfer can save serious interest — if you pay the balance off before the promo ends and the transfer fee is reasonable. Watch the fee, usually 3% to 5%, and have a plan; the regular APR after the promo is often high.
Does paying off a card hurt my credit?
No — paying down balances helps. It lowers your credit utilization, a major scoring factor. Keep the account open after payoff if it has no annual fee; the available credit and account history continue to support your score.