Credit Card Payment Calculator
Calculate the fixed monthly payment needed to pay off a credit card balance over a chosen number of months, plus the total interest and total cost.
Input
Output
| Metric | Value |
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| No data yet | |
Guides
What this calculator does
Enter your credit card balance, its APR, and the number of months you want to pay it off in, and this calculator works out the fixed monthly payment that clears the balance in exactly that time — plus the total interest and total amount you'll pay along the way. It's the reverse of most payoff calculators: instead of picking a payment and finding out how long it takes, you pick the timeline and find out what payment it takes.
How it's calculated
This uses the standard loan amortization formula, since a fixed payment over a fixed term fully determines both the payment amount and the interest split:
payment = balance x monthlyRate x (1 + monthlyRate)^months / ((1 + monthlyRate)^months - 1)where monthlyRate = APR / 100 / 12. At a 0% APR the formula simplifies to just
balance / months, since there's no interest to amortize. Total interest is the
difference between the total paid (payment x months) and the original balance.
How to use this tool
- Enter your Current Balance — what you currently owe on the card.
- Enter the card's Annual Percentage Rate (APR) as a percentage (e.g.
17). - Enter the Payoff Term — how many months you want to take to pay it off.
The summary table updates instantly with the required monthly payment, total interest, total amount paid, and interest as a percentage of the original balance.
FAQ
I know my payment, not my payoff term — can this calculator work the other way? Yes — use the Credit Card Payoff Calculator to enter a fixed payment and find out how many months it takes, or the Credit Card Minimum Payment Calculator to see how much longer a shrinking minimum payment takes compared to a fixed one.
Why is my real payment different from what this shows? Card issuers usually require only a small minimum payment, not the fixed amount needed to clear the balance on a set schedule. This calculator tells you what a disciplined fixed payment would need to be to hit your own target payoff date — not what the issuer requires you to pay.
Does this account for new charges added to the balance? No — it assumes no further spending on the card. If you'll keep using the card while paying it down, the Credit Card Payoff Calculator's optional new-charges field models that.
Privacy
All calculations run entirely in your browser. Nothing you enter — balances, APR, or the payoff term — is sent to a server or stored anywhere.
More ways to use this tool
REST API
curl -X POST https://api.iotools.cloud/v1/tool/credit-card-payment-calculator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"balance": "3000",
"apr": "17",
"months": "12"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `credit-card-payment-calculator` tool (Credit Card Payment Calculator) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.
Embed widget
<iframe
src="https://iotools.cloud/embed/credit-card-payment-calculator/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="Credit Card Payment Calculator — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>Drop this into your own page — free, no key required, just a link back.
| Cost per call | From 5 credits |
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