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Credit Card Payoff Calculator: How Long to Clear Your Balance

A credit card payoff calculator estimates the time and interest needed to eliminate a card balance with a fixed monthly payment. It helps you test whether a payment is high enough and how extra payments can speed up payoff.

Updated 2026-07-09Reviewed by US Finance Hub Editorial TeamCalculations run in your browser

Quick answer

Your monthly payment must be greater than the interest charged for the balance to decline. Increasing the payment can reduce both the payoff time and total interest dramatically.

At a glance

What it calculates
Estimate how long credit card debt may take to repay and how much interest it may cost.
Who it is for
US cardholders carrying a revolving balance who want a payoff date and interest total before choosing a payment amount.
Coverage
United States (federal rules; state and local rules vary)
Data and assumptions
A fixed monthly payment, one APR applied to the whole balance, no new purchases, no fees and interest charged monthly.
Cost
Free, no signup, calculations run in your browser
Last reviewed
2026-07-09

Calculator

Enter your numbers

Total amount currently owed.
Annual percentage rate.
Amount you plan to pay each month.
Extra amount above your planned payment.

How to use this calculator

  1. Enter your current card balance and APR.
  2. Add the monthly payment you can maintain.
  3. Test an extra monthly payment if possible.
  4. Review the payoff time and total interest estimate.

Explanation

What it is

A credit card payoff calculator estimates the time and interest needed to eliminate a card balance with a fixed monthly payment. It helps you test whether a payment is high enough and how extra payments can speed up payoff.

How it works

The payoff time is estimated with n = −ln(1 − rP/A) ÷ ln(1 + r), where P is the balance, r is the monthly rate, and A is the monthly payment. The formula requires the payment to exceed monthly interest.

When to use it

Use it before setting a fixed monthly payment, and again whenever the APR changes or you consider a balance transfer.

Limitations

  • One APR is applied to the whole balance; purchase, transfer and cash advance APRs usually differ.
  • New purchases, late fees, annual fees and penalty APRs are excluded.
  • Promotional 0% and deferred-interest offers are not modelled.

Key terms

Balance
The amount currently owed on the card.
APR
The annual percentage rate used to calculate interest.
Minimum payment
The smallest payment accepted by the issuer for a billing cycle.
Payoff period
The estimated time needed to reduce the balance to zero.
Total interest
The sum of interest charges paid during repayment.

Formula

The payoff time is estimated with n = −ln(1 − rP/A) ÷ ln(1 + r), where P is the balance, r is the monthly rate, and A is the monthly payment. The formula requires the payment to exceed monthly interest.

n = −ln(1 − rP/A) ÷ ln(1 + r)

Worked example

A $7,500 balance at 22% APR with a $250 monthly payment shows how high interest slows payoff. Increasing the payment changes both the payoff date and total interest.

FAQ

How can I pay off credit card debt faster?

Pay more than the minimum, stop adding new charges, direct extra money to the highest-rate balance, and consider whether a lower-rate consolidation option is appropriate.

Why does the minimum payment take so long?

Minimum payments are often designed to keep the account current, not to eliminate the balance quickly. A large share can go to interest when the APR is high.

Should I pay the highest balance or highest interest rate first?

Paying the highest APR first usually minimizes interest. Paying the smallest balance first can create faster psychological wins. The best method is one you can follow consistently.

Is a balance transfer always a good idea?

Not always. Review the transfer fee, promotional period, post-promotion APR, and whether you can repay the balance before the offer expires.

What if my payment is less than the monthly interest?

The balance may grow rather than shrink. Increase the payment, reduce the APR, or contact the issuer or a reputable nonprofit credit counselor for options.

Does this include late fees or new purchases?

No. The estimate assumes no new purchases, late fees, annual fees, or rate changes.

How long will it take to pay off $5,000 in credit card debt?

At a 22% APR, paying $150 a month clears $5,000 in about 4 years and costs roughly $2,100 in interest. Paying $250 a month clears it in about 2 years with roughly $1,150 of interest.

What is the fastest way to pay off credit card debt?

Stop new charges, pay the highest-APR balance first while paying the minimum on the others, and keep the total monthly payment fixed as balances clear. A 0% balance transfer can help if the transfer fee is smaller than the interest avoided.

Common mistakes

  • Continuing to add new purchases.
  • Paying only the minimum without reviewing the timeline.
  • Ignoring promotional-rate expiration dates.
  • Using a payment amount the budget cannot sustain.

Tips

  • Automate more than the minimum.
  • Stop new charges on payoff cards when practical.
  • Apply windfalls to the highest-cost balance.
  • Ask the issuer about hardship options before missing payments.

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Sources and editorial review

Educational estimates only; not personalized financial, tax, legal, lending, investment, or insurance advice.