finance calculator
Plan exactly how long it will take to pay off credit card debt and calculate interest savings from higher monthly payments.
Card balances are amortised month by month: balance = balance + (balance x APR / 12) - payment. A $6,000 balance at 22.9% APR takes 45 months and about $2,991 of interest at $200 a month, but 26 months and about $1,630 at $300. Because interest is charged on the remaining balance, the extra $100 a month saves about $1,361 of interest and 19 months. A payment at or below the first month's interest ($114.50 here) never clears the balance, and the calculator says so.
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Payoff timeline
3 years, 3 months
Tip
Card balances and interest rates fluctuate. Save this page to test the impact of higher payments or lower APR offers.
Summary
Payoff timeline
3 years, 3 months
Estimated months until zero balance.
Total interest
$2,506
Interest paid if the payment stays fixed.
Total paid
$9,506
Starting balance plus interest.
Monthly payment
$250
Fixed payment used in the simulation.
Breakdown
Separate the starting balance from the estimated interest paid during payoff.
| Item | Value |
|---|---|
| Balance | $7,000 |
| Interest | $2,506 |
Trend
A sampled view of the payoff simulation shows how fast the balance declines.
| Item | Value |
|---|---|
| M1 | $6,867 |
| M4 | $6,453 |
| M7 | $6,018 |
| M10 | $5,562 |
| M13 | $5,082 |
| M16 | $4,577 |
| M19 | $4,047 |
| M22 | $3,490 |
| M25 | $2,905 |
| M28 | $2,290 |
| M31 | $1,644 |
| M39 | $0 |
Full amortization schedule
Monthly view shows the full exact schedule. Quarterly and yearly views summarize the same monthly schedule. Weekly view is a weekly equivalent split for quick planning.
Swipe sideways to view all columns.
Scroll within the table to see every row, or switch to Yearly above for a shorter one-row-per-year summary.
| Period | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| Month 1 | $250 | $133 | $117 | $6,867 |
| Month 2 | $250 | $136 | $114 | $6,731 |
| Month 3 | $250 | $138 | $112 | $6,593 |
| Month 4 | $250 | $140 | $110 | $6,453 |
| Month 5 | $250 | $143 | $107 | $6,310 |
| Month 6 | $250 | $145 | $105 | $6,166 |
| Month 7 | $250 | $147 | $103 | $6,018 |
| Month 8 | $250 | $150 | $100 | $5,869 |
| Month 9 | $250 | $152 | $98 | $5,716 |
| Month 10 | $250 | $155 | $95 | $5,562 |
| Month 11 | $250 | $157 | $93 | $5,404 |
| Month 12 | $250 | $160 | $90 | $5,244 |
| Month 13 | $250 | $163 | $87 | $5,082 |
| Month 14 | $250 | $165 | $85 | $4,916 |
| Month 15 | $250 | $168 | $82 | $4,748 |
| Month 16 | $250 | $171 | $79 | $4,577 |
| Month 17 | $250 | $174 | $76 | $4,403 |
| Month 18 | $250 | $177 | $73 | $4,227 |
| Month 19 | $250 | $180 | $70 | $4,047 |
| Month 20 | $250 | $183 | $67 | $3,865 |
| Month 21 | $250 | $186 | $64 | $3,679 |
| Month 22 | $250 | $189 | $61 | $3,490 |
| Month 23 | $250 | $192 | $58 | $3,298 |
| Month 24 | $250 | $195 | $55 | $3,103 |
| Month 25 | $250 | $198 | $52 | $2,905 |
| Month 26 | $250 | $202 | $48 | $2,703 |
| Month 27 | $250 | $205 | $45 | $2,498 |
| Month 28 | $250 | $208 | $42 | $2,290 |
| Month 29 | $250 | $212 | $38 | $2,078 |
| Month 30 | $250 | $215 | $35 | $1,863 |
| Month 31 | $250 | $219 | $31 | $1,644 |
| Month 32 | $250 | $223 | $27 | $1,421 |
| Month 33 | $250 | $226 | $24 | $1,195 |
| Month 34 | $250 | $230 | $20 | $965 |
| Month 35 | $250 | $234 | $16 | $731 |
| Month 36 | $250 | $238 | $12 | $493 |
| Month 37 | $250 | $242 | $8 | $251 |
| Month 38 | $250 | $246 | $4 | $6 |
| Month 39 | $6 | $6 | $0 | $0 |
Guide
Enter your current balance, the card's annual interest rate (APR), and the fixed monthly payment you plan to make. The calculator simulates the balance month by month and returns your payoff timeline, total interest paid, and total amount paid.
Balance $7,000, APR 19.99%, fixed monthly payment $250.
Payoff timeline: 39 months (about 3 years, 3 months).
Total interest paid: ≈ $2,505.63.
Total paid over the life of the payoff: ≈ $9,505.63, meaning interest adds roughly 36% on top of the original $7,000 balance at this rate and payment size.
Raising the monthly payment to $350 cuts the payoff to 25 months and the interest to about $1,585.21, saving about $920 and 14 months, because more of each payment goes to principal instead of interest.
Lowering it to $100 does the opposite: the first month's interest is about $116.61, so a $100 payment never reduces the balance. The calculator shows a notice instead of a payoff date and tells you the smallest payment that makes progress, $116.61. Even that payment would take more than 50 years, so a realistic plan needs far more than the interest alone.
Credit cards operate as revolving credit lines, where you can borrow, repay, and borrow again up to a limit. Unlike installment loans, credit cards do not have a fixed repayment term, and interest is calculated daily on your outstanding balance.
If you do not pay your statement balance in full every month, interest charges accrue. Because credit card interest rates (APRs) are typically high, revolving debt can quickly lead to compounding interest charges that make the debt difficult to manage.
Credit card companies require a small minimum monthly payment, typically calculated as 1% to 2% of the total balance plus monthly interest. While this keeps the account in good standing, it pays down principal extremely slowly.
Making only the minimum payment means the majority of your cash goes toward paying monthly interest, leaving very little to reduce the principal. This creates a long payoff timeline, often taking 10 to 30 years to pay off a moderate balance.
To simulate a credit card payoff under a fixed monthly payment, the calculator performs the following calculations for each month:
Step 1: Calculate Monthly Interest: I_t = B_(t-1) × APR/12.
Step 2: Compare Payment to Interest: If the monthly payment PMT ≤ I_t, the debt will never be paid off (infinite timeline), as the payment does not cover the interest.
Step 3: Calculate Remaining Balance: B_t = B_(t-1) + I_t - PMT.
Step 4: Repeat until B_t ≤ 0. The total months elapsed represents your payoff timeline, and the sum of all I_t represents the total interest cost.
If your payoff timeline is too long, consider these options:
Increase Monthly Payments: Even adding $50 or $100 above the minimum payment can shave years off the timeline and save thousands in interest.
Balance Transfer: Moving high-interest balances to a new credit card with a 0% introductory APR for 12 to 21 months. You must pay off the balance before the promo period ends, and factor in transfer fees (typically 3-5%).
Debt Consolidation Loan: Replacing card debt with a fixed-rate personal installment loan to lower your APR and establish a clear end date.
If you are juggling this card alongside other balances, use the debt payoff calculator to compare avalanche and snowball strategies, and check the loan calculator to see how a fixed-rate consolidation loan would compare.
If you're planning a mortgage or other major loan soon, check how this card's minimum payment affects your qualifying ratio with the debt-to-income ratio calculator.
Revolving Credit
A line of credit that can be borrowed, repaid, and borrowed again up to a limit, with no fixed term.
Grace Period
The interest-free period between the end of the billing cycle and the payment due date.
Minimum Monthly Payment
The lowest amount you must pay each month to keep the account active and avoid late fees.
Formula
Each month: balance = balance + interest - paymentThe calculator applies monthly interest, subtracts the payment, and repeats until the card is paid off. If the payment does not exceed the first month's interest, or the balance would take more than 50 years to clear, it says so instead of showing a payoff date.
Step by step
Example
A $7,000 balance at 19.99% APR with a $250 monthly payment takes multiple years and adds interest cost.
Related guides
Guide
Estimate credit card payoff time and interest, compare higher payments and transfers, and understand the limits of the DTC monthly payoff model.
Guide
Compare debt snowball and avalanche payoff methods, see how ordering changes interest and timing, and model both with the DTC calculator.
Template
Track exactly where card payments fit in your monthly cash flow with a running balance and category spending dashboard.
Template
Track debt payments against income timing with the Personal Cash Flow Tracker's Debt Payments category.
Last updated . This is the date the calculator or its guidance last changed, taken from our revision history rather than from the last time the site was deployed.
This calculator implements published formulas. Each source below is the primary reference for a specific part of the calculation, so you can verify the result independently.
Consumer Financial Protection Bureau
The minimum-payment disclosure rule this calculator mirrors: the time to clear a balance at the minimum payment, and the saving from paying a fixed amount instead.
Read how we select formulas, review calculations, and handle corrections in our methodology. Found an error? Tell us and we will correct it and note the change.