Find out how long it will take to clear a credit card balance with a fixed monthly payment, or how much you must pay each month to be debt-free within a set time. The calculator also shows the total interest you will pay.
The credit card calculator on this page answers the two questions that matter most when you are carrying a balance: "How long will it take to pay this off?" and "How much do I need to pay each month to be free of it by a certain date?" Credit cards are one of the most expensive forms of everyday borrowing, and small changes in how much you pay each month can mean the difference between years of payments and a few short months. By entering your balance, your card's interest rate, and either a monthly payment or a target payoff time, you instantly see your payoff timeline and the total interest the debt will cost you.
Whether you are trying to escape a high-interest balance, planning a realistic budget, or simply curious about how much a card is really costing you, this tool turns the complicated math of revolving credit into a clear, concrete answer.
The calculator works in two modes, and you choose the one that matches your situation:
In the first mode you can also use the handy preset links (Interest + 1% of Balance, 2%, 3%, 4%, and 5%) to fill in a payment based on a percentage of your current balance — a quick way to model the kind of "minimum payment" formula many card issuers use.
To use the results well, it helps to understand the engine underneath. Credit card interest is quoted as an Annual Percentage Rate (APR), but it is charged monthly. To find the monthly rate, the issuer divides the APR by 12. A card with an 18% APR therefore charges roughly 1.5% per month on the balance. (In practice many issuers calculate interest daily using your average daily balance, which is very close to the monthly method this calculator uses.)
Each month, interest is added to your balance based on what you owe. Your payment is then applied: part of it covers that month's interest, and whatever is left reduces the principal. Because interest is charged on the remaining balance, the amount of interest you pay shrinks over time as the principal falls — which is exactly why paying extra early makes such a big difference. The formula the calculator uses to find the number of months n to pay off a balance B at a monthly rate i with a fixed payment P is:
n = −ln(1 − B × i / P) / ln(1 + i)
And the monthly payment P required to clear a balance in a fixed number of months n is:
P = B × i / (1 − (1 + i)−n)
These are the same standard amortization formulas used for loans. The total interest is simply the sum of all your payments minus the original balance.
Credit card issuers typically set the minimum payment at a small percentage of your balance — often around 1% to 3% of the balance plus that month's interest, or a small fixed dollar amount, whichever is greater. Paying only the minimum keeps your account in good standing, but it is designed to keep you in debt for as long as possible, maximizing the interest the issuer collects.
Here is the problem: because the minimum is a percentage of the balance, it shrinks as the balance shrinks. The payments get smaller and smaller, stretching the payoff over a decade or more and piling on interest that can rival or exceed the original amount borrowed. A $5,000 balance at 20% APR, paid at a typical minimum, can take well over 15 years to clear and cost thousands in interest. Try it in the calculator: enter a balance and rate, then use the Interest + 1% of Balance preset to see how a minimum-style payment compares to a flat, higher monthly amount. The difference is usually eye-opening.
The single most powerful move you can make is to pay a fixed amount each month rather than the declining minimum. Even if you start with roughly the same dollar figure, keeping the payment constant as the balance falls dramatically shortens the payoff time and slashes total interest.
Suppose you owe $8,000 on a card with an 18% APR (a 1.5% monthly rate). If you pay a fixed $200 per month, the calculator shows it will take 5 years and 2 months to pay off, with $4,308.61 in total interest — meaning the $8,000 of spending actually costs you over $12,300. Now suppose you set a goal of being debt-free in 2 years instead. The calculator shows you would need to pay about $399.39 per month, but the total interest drops to just $1,585.43. By roughly doubling the monthly payment, you cut the interest cost by nearly two-thirds and finish more than three years sooner. This is the core lesson of credit card debt: paying more, faster, saves a remarkable amount of money.
As shown above, this is the foundation of every payoff plan. Commit to a fixed monthly payment you can sustain, and resist the temptation to let it fall as your balance drops. Use this calculator to find a payment that clears the debt in a timeframe you are comfortable with, then treat it like a fixed bill.
If you carry balances on several cards, the avalanche method directs every spare dollar to the card with the highest interest rate first, while paying the minimum on the rest. Mathematically, this minimizes the total interest you pay and is the fastest way out of debt. Once the highest-rate card is gone, you roll its payment into the next-highest, and so on.
The snowball method instead targets the smallest balance first, regardless of rate, to score quick wins that build momentum and motivation. It may cost slightly more in interest than the avalanche, but for many people the psychological boost of eliminating an entire card keeps them on track. Both methods work — the best one is the one you will stick with.
Many cards offer promotional 0% APR balance transfers for an introductory period (often 12 to 21 months). Moving a high-interest balance to such a card means every dollar of your payment goes to principal during the promo window. Watch for the balance transfer fee (commonly 3% to 5%) and have a plan to clear the balance before the standard rate kicks in. Use the "pay off within a certain timeframe" mode, set to the promo length, to find the payment that gets you to zero before interest returns.
A fixed-rate personal loan often carries a much lower rate than a credit card. Consolidating card balances into one such loan can reduce your interest cost and replace several variable minimum payments with a single predictable one. Compare the loan's rate and term against your current cards before committing.
It costs nothing to call your issuer and ask for a lower APR, especially if you have a solid payment history. Even a few points off your rate meaningfully reduces the interest you pay and speeds up payoff.
Your monthly statement contains the numbers this calculator depends on. The statement balance is what you owe at the end of the billing cycle; enter this as your balance. The APR (or "purchase APR") is the interest rate to enter — note that cards can have different APRs for purchases, cash advances, and balance transfers. The minimum payment due shows the least you can pay to stay current. Issuers are also required to print a minimum payment warning box showing how long it would take, and how much it would cost, to pay off the balance making only minimum payments versus a higher payment that clears it in three years. That box is essentially a real-world version of this calculator, and it underscores how costly the minimum-only path can be.
Beyond interest, the balances you carry influence your credit score. One of the most important factors is your credit utilization ratio — the percentage of your available credit you are using. Keeping utilization low (commonly cited as under 30%, and ideally much lower) helps your score, while maxed-out cards hurt it. Paying down balances therefore does double duty: it saves interest and improves your creditworthiness, which can earn you better rates on future loans. Consistent, on-time payments are the single biggest factor in a healthy score, so building a steady payoff habit pays off in more ways than one.
It depends on your balance, your interest rate, and how much you pay each month. Enter those figures in the "pay a certain amount" mode above and the calculator shows the exact number of months and years, plus the total interest. Paying more each month shortens the timeline considerably.
Switch to the "pay off within a certain timeframe" mode, enter your target number of years and months, and the calculator returns the fixed monthly payment required to reach zero by then, along with the total interest you will pay.
Minimum payments are calculated as a small percentage of your balance, so they shrink as the balance falls. The ever-smaller payments stretch repayment over many years and maximize the interest the issuer collects. Paying a fixed, higher amount each month is far faster and cheaper.
Enter your card's purchase APR, which appears on your monthly statement and in your cardholder agreement. The calculator converts the annual rate to a monthly rate internally by dividing by 12.
No. It assumes you stop adding new charges and focus on paying down the existing balance. Continuing to spend on the card while paying it down will extend the payoff time and increase the interest. For best results, pause new purchases until the balance is cleared.
It is a common formula card issuers use to set the minimum payment: one month's interest plus 1% of the current balance. The preset links above fill the payment field with that amount (or a flat 2%–5% of the balance) so you can quickly model a minimum-style payment and compare it to a higher fixed payment.
Because credit card interest rates are typically far higher than the returns on savings, paying off card debt usually gives the best guaranteed "return." A common approach is to keep a small starter emergency fund, then aggressively pay down high-interest cards before building larger savings or investments.
This Credit Card Calculator is provided for educational and general informational purposes only. It uses standard amortization math and assumes a constant interest rate, no new purchases, and no fees. Real credit card billing may differ due to daily interest accrual, changing rates, fees, and other terms in your cardholder agreement. Always refer to your statement and consult a qualified financial professional for advice specific to your situation.