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Credit Card Payoff Calculator

Estimate how long it will take to pay off a credit card balance with a fixed monthly payment, and how much time and interest an extra payment could save.

Free No signup Runs in your browser

Your Details

Optional. Compare your current plan with paying a little more each month.

Your calculations are performed locally in your browser. Nothing you enter is sent or stored.

Your Results Estimate

Months to Pay Off —
Total Interest
—
Total Amount Paid
—
Balance over time

Results are estimates based on the assumptions you entered. Actual results will vary and are not guaranteed.

About the Credit Card Payoff Calculator

Credit card APRs are often much higher than other types of borrowing, so a balance paid down slowly can cost a significant amount in interest. Seeing the payoff timeline in months and dollars makes it easier to plan.

Add an optional extra monthly payment to compare your current plan side by side with a faster payoff plan.

How It Works

Each month, the calculator adds interest at your APR ÷ 12 to the balance and then subtracts your payment. It repeats until the balance reaches $0. The last payment is only the amount needed to finish paying off the card.

The calculator assumes no new purchases, balance transfers, or fees, and a fixed APR. Most U.S. card issuers calculate interest on your average daily balance, so your statements may differ slightly from these estimates.

Your monthly payment must be larger than the first month's interest charge; otherwise the balance would never go down.

Formula

Monthly interest
Interestk = Balancek−1 × (APR / 12)
New balance each month
Balancek = Balancek−1 + Interestk − Payment
Closed-form payoff time (for reference)
N = −ln(1 − B·r / P) / ln(1 + r)
  • Bcurrent balance
  • rmonthly rate = APR ÷ 12
  • Pmonthly payment

Example

You owe $5,000 on a card with a 22.99% APR and pay $200 a month. Then you try adding $50 extra each month.

Inputs

Balance
$5,000
APR
22.99%
Monthly payment
$200
Extra payment
$50

Results

Time to pay off
2 years, 11 months
Total interest
$1,871.08
With extra $50
2 years, 2 months
Interest saved
$505.50

Understanding Your Results

  • Months to Pay Off: How long until the balance reaches $0 at your current payment.
  • Total Interest: All interest charged over the payoff period.
  • Total Amount Paid: Your balance plus total interest.
  • Interest Saved: The difference in total interest between your current plan and the extra-payment plan.

Frequently Asked Questions

Why does my payment have to be more than the interest?
If your payment only covers the interest (or less), the balance never decreases. The calculator tells you the minimum needed to start paying down the principal.
Does this include new purchases?
No. It assumes you stop using the card. New charges would extend the payoff time and increase interest.
How accurate is the estimate?
It is a close estimate using monthly interest. Card issuers typically use a daily periodic rate on your average daily balance, and APRs can change, so actual figures may vary.
Should I use the minimum payment?
You can enter any payment amount, including your statement's minimum. Minimum payments usually change as the balance falls, so a fixed payment gives a simpler, more predictable plan.
I have several cards. How do I use this?
Run the calculator once for each card to compare payoff timelines and interest, or combine balances with a weighted-average APR for a rough overall estimate.