InputsLive
Card balance
$
APR
%
Monthly payment
$/mo
Estimated minimum: $150/mo
Result
Payoff time
3 years
Total interest: $2,000.56 · Total paid: $7,000.56
Payoff time3 years
Total interest$2,000.56
Total paid$7,000.56
Min. payment$150

Estimate only. Actual interest depends on daily periodic rate and billing cycle. Minimum payment formula varies by issuer.

Results are estimates. Consult a professional.

How it's calculated

How the credit card repayment calculator works

This calculator solves two closely related questions: (1) given a fixed monthly payment, how many months until the balance hits zero and how much total interest will you pay? (2) given a target payoff timeline in months, what fixed monthly payment is required? Both questions use the same amortisation formula, just solved in opposite directions.

r = APR ÷ 12 (monthly rate)
Months to payoff: n = log(1 balance × r ÷ payment) ÷ log(1 + r)
Required payment for target n months: PMT = balance × r ÷ (1 (1 + r)^n)
Total interest = (n × PMT) original balance
CFPB — Understanding credit card interest and how repayment is structured.
Example

Worked example: paying off $8,000 in exactly 24 months

Example: $8,000 at 22% APR, payoff goal = 24 months

Sam carries an $8,000 credit card balance at 22% APR and wants to be completely debt-free in exactly 24 months. What fixed monthly payment is needed, and how much interest will be paid?

r = 22% ÷ 12 = 1.8333% per month
PMT = 8,000 × 0.018333 ÷ (1 (1.018333)^24)
PMT = 146.67 ÷ (1 0.6467) = 146.67 ÷ 0.3533 ≈ $415/month
Total paid = 24 × $415 = $9,956
Total interest = $9,956 $8,000 = $1,956
$415/month → debt-free in 24 months
Committing $415 every month clears $8,000 of 22%-APR debt in two years and costs $1,956 in interest. Paying only the minimum would take over 7 years and cost roughly $5,400 in interest.
Quick reference

Required monthly payment by balance, APR, and payoff target

Use the table below to find the monthly payment needed to eliminate a balance in a fixed number of months. All figures assume a constant APR and no new charges.

BalanceAPR12 months18 months24 months36 months
$3,00020%$278/mo$192/mo$148/mo$111/mo
$3,00022%$280/mo$194/mo$150/mo$114/mo
$5,00020%$464/mo$320/mo$247/mo$186/mo
$5,00022%$467/mo$323/mo$250/mo$190/mo
$8,00020%$742/mo$512/mo$396/mo$297/mo
$8,00022%$747/mo$517/mo$415/mo$304/mo
$12,00020%$1,113/mo$768/mo$594/mo$446/mo
$12,00022%$1,120/mo$775/mo$601/mo$456/mo

Source: CFPB. Estimates assume monthly compounding, fixed APR, and no new purchases. Total interest paid = (months × payment) − original balance.

Practical tips

Tips for staying on a repayment plan

Setting a payoff target and computing the required payment is the easy part. The harder part is maintaining that payment every month. These habits make it stick.

  • Automate the exact payment amount — Set up an automatic payment for your calculated monthly amount, not just the minimum. Automation removes the willpower requirement entirely.
  • Freeze new spending on the card — Each new purchase restarts the amortisation clock. Remove the card from digital wallets and online accounts until the balance is gone.
  • Apply windfalls immediately — Tax refunds, bonuses, and gifts applied directly to the balance shorten the timeline and reduce total interest — run the calculator again after each lump-sum payment.
  • Track progress monthly — Check that your balance is declining by roughly the principal-reduction amount each month (payment minus interest). A balance that barely moves signals a problem.
  • Avoid balance-transfer fees that exceed the interest saved — A 0% transfer offer is only beneficial if the transfer fee (3–5%) is less than the interest you'd pay over the promotional period at your current APR.
Accuracy & limits

Accuracy and limitations

The calculator assumes a fixed APR, monthly compounding, a constant payment, and no new purchases or fees added to the balance. Credit card issuers typically use daily compounding on the average daily balance, which can produce slightly different results. Actual payoff dates may also vary with payment timing within the billing cycle. Use these figures for planning and goal-setting rather than as a precise repayment schedule.

Not financial advice — consult a financial professional for your specific situation.

Glossary

Credit card repayment terms defined

The process of paying off a debt through regular equal payments, with each payment covering that period's interest before reducing the principal.
The original amount borrowed, or the remaining balance excluding accrued interest. Each payment reduces the principal by the amount left after covering interest.
APR divided by 12. Applied to the outstanding balance each month to calculate that month's interest charge.
The month in which the final payment brings the balance to zero. Directly determined by the payment amount — higher payments produce an earlier payoff date.
The difference between the sum of all payments made and the original balance. The key metric for comparing different payment strategies.
The pattern of paying only the required minimum, which keeps the balance high long enough for interest charges to dwarf the original debt — a design feature of revolving credit.
About

About this credit card repayment calculator

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Questions

Frequently asked questions about the free credit card repayment calculator

A credit card repayment calculator is a free online tool that helps you same as credit card payoff — time to clear a balance. Same engine. It runs entirely in your browser with instant results and no sign-up.
No — actual loan terms depend on credit, income docs, and lender underwriting. Use this for planning and what-if scenarios; get a real Loan Estimate before making decisions.
When the calculator asks for them. PITI calculations include property tax, insurance, and PMI; raw P&I calculations don't.
Lenders round payment amounts and may include escrow buffers. Property tax and insurance change over time. Real payments vary 1-5% from these estimates.

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