How does the credit card payoff calculator work?
The calculator amortizes your balance month by month. Each month it charges interest equal to your balance × (APR ÷ 12), and the rest of your payment reduces the principal. It repeats until the balance reaches zero. A $5,000 balance at 21% APR paid at $200/month takes 34 months and costs about $1,633 in interest. Pay $300/month instead and it clears in 20 months for roughly $960 in interest.
Why does paying only the minimum cost so much?
The minimum payment is designed to keep you in debt for years. Most large issuers set it at about 1% of the balance plus that month’s interest and fees, so it shrinks as the balance shrinks and stretches repayment out. Federal law (the CARD Act) requires a box on every statement showing how long minimum-only payments take — often well over a decade. On a $5,000 balance at 21%, minimum-only payments take about 19 years and cost roughly $7,700 in interest — more than the balance itself.
How can I pay off a credit card faster?
Pay a fixed amount above the minimum every month, and pay more than your first month’s interest or the balance never falls. Two common strategies help: the avalanche method (pay extra on the highest-APR card first to minimize total interest) and the snowball method (clear the smallest balance first for momentum). A 0% APR balance-transfer card can also pause interest for a promotional period, though it usually charges a transfer fee of 3–5%.
How to use the credit card payoff calculator
- 1
Enter your current balance. Use the balance you carry from month to month — the amount that accrues interest. A $5,000 balance is the example used below.
- 2
Enter your APR. Find the purchase APR on your statement. The U.S. average is about 21% (Federal Reserve, Q1 2026), and the calculator starts there.
- 3
Choose what to solve for. Pick "Payoff time" and enter a monthly payment, or pick "Payment needed" and set a target number of months.
- 4
Read the payoff and total interest. See how many months it takes and the total interest you pay. Raise the payment to watch both numbers drop.
Credit card payoff reference tables
Payoff time and interest at common payments, the cost of the minimum-payment trap, and the average U.S. credit card APR.
Payoff time and interest by monthly payment ($5,000 at 21% APR)
How long a $5,000 balance takes to clear at the U.S. average 21% APR, and the total interest paid, for each monthly payment.
| Monthly payment | Time to pay off | Total interest |
|---|---|---|
| $100 | 120 mos (10 yrs) | $6,986 |
| $150 | 51 mos (4 yrs 3 mos) | $2,570 |
| $200 | 34 mos (2 yrs 10 mos) | $1,633 |
| $250 | 25 mos (2 yrs 1 mo) | $1,208 |
| $300 | 20 mos (1 yr 8 mos) | $963 |
| $400 | 15 mos (1 yr 3 mos) | $692 |
| $500 | 12 mos (1 yr) | $545 |
Source: Socko calculation: monthly amortization at balance × (APR ÷ 12).
The minimum-payment trap ($5,000 at 21% APR)
Minimum payments fall as the balance falls, stretching repayment to nearly two decades. A flat fixed payment ends it in a few years for a fraction of the interest.
| Strategy | Time to pay off | Total interest |
|---|---|---|
| Minimum only (≈1% + interest) | 228 mos (19 yrs) | $7,708 |
| Fixed $150/mo | 51 mos (4 yrs 3 mos) | $2,570 |
| Fixed $200/mo | 34 mos (2 yrs 10 mos) | $1,633 |
| Fixed $300/mo | 20 mos (1 yr 8 mos) | $963 |
Source: Socko calculation. Minimum modeled as 1% of balance plus interest (CFPB-typical), with a $25 floor.
Average U.S. credit card APR
The Federal Reserve publishes the national average credit card interest rate quarterly in its G.19 Consumer Credit release. Use it if you do not know your own APR.
| Measure | Average APR | Period |
|---|---|---|
| All credit card accounts | 21.00% | Q1 2026 |
| Accounts assessed interest (carry a balance) | 21.52% | Q1 2026 |
Frequently asked questions
How long will it take to pay off $5,000 in credit card debt?
At 21% APR, paying $200/month clears $5,000 in 34 months (~$1,633 interest). Paying $300/month clears it in 20 months (~$960 interest).
How is credit card interest calculated?
Divide the APR by 12 for a monthly rate, then charge it on the balance. At 21% APR (1.75% per month), $5,000 accrues about $87.50 the first month. Most cards compound daily, so the real figure is a touch higher.
What is the minimum payment trap?
Minimums (about 1% of balance + interest) shrink as the balance shrinks, so repayment drags on for years. Minimum-only on $5,000 at 21% takes about 19 years and costs roughly $7,700 — more than the original balance.
What APR should I enter?
Use the purchase APR on your statement. If unsure, the U.S. average is about 21% (21.5% on accounts that carry a balance) per the Federal Reserve, Q1 2026.
Will paying more than the minimum really help?
Yes — extra dollars go straight to principal. A small fixed increase cuts both the time and the interest, and doubling your payment usually more than halves total interest.
Is a balance transfer worth it?
It can be — a 0% promo period (often 12–21 months) pauses interest. Weigh the 3–5% transfer fee and the regular APR after the promo ends, and aim to clear the balance before it does.
Does this calculator account for new purchases?
No — it assumes a fixed rate and no new charges. New purchases extend payoff and add interest, so pause the card while you pay it down.
Is the calculator free, and is my data saved?
Yes — it is free and runs entirely in your browser. Nothing you enter is sent or stored.
This tool is for estimation and education, not financial advice. See our methodology for how these figures are calculated and sourced.