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Credit Card Payoff Calculator

See how your monthly payment changes the payoff date and total card interest.

Your numbers

Make it your own
Updates as you type
Months to become debt-free
32months

Calculated from your inputs · rounded for display

Regular monthly payment$200.00
Total interest$1,313.96
Total paid$6,313.96

Fixed nominal annual rate, monthly interest and end-of-month payments. No new borrowing, fees or penalties. Card issuers may calculate daily interest differently.

Your calculation, step by step

No black boxes
  1. Monthly interest = outstanding balance × 18% ÷ 12.
  2. Base payment = 200 USD; monthly extra = 0 USD.
  3. Apply interest, then each payment, limiting the final payment to the remaining balance plus interest.
  4. Payoff takes 32 months; total interest = 1,313.963999 USD.
Detailed results · 32 entries
MonthPayment (USD)Interest (USD)Principal (USD)Balance (USD)
1$200.00$75.00$125.00$4,875.00
2$200.00$73.13$126.88$4,748.13
3$200.00$71.22$128.78$4,619.35
4$200.00$69.29$130.71$4,488.64
5$200.00$67.33$132.67$4,355.97
6$200.00$65.34$134.66$4,221.31
7$200.00$63.32$136.68$4,084.63
8$200.00$61.27$138.73$3,945.90
9$200.00$59.19$140.81$3,805.08
10$200.00$57.08$142.92$3,662.16
11$200.00$54.93$145.07$3,517.09
12$200.00$52.76$147.24$3,369.85
13$200.00$50.55$149.45$3,220.40
14$200.00$48.31$151.69$3,068.70
15$200.00$46.03$153.97$2,914.73
16$200.00$43.72$156.28$2,758.45
17$200.00$41.38$158.62$2,599.83
18$200.00$39.00$161.00$2,438.83
19$200.00$36.58$163.42$2,275.41
20$200.00$34.13$165.87$2,109.54
21$200.00$31.64$168.36$1,941.18
22$200.00$29.12$170.88$1,770.30
23$200.00$26.55$173.45$1,596.86
24$200.00$23.95$176.05$1,420.81
25$200.00$21.31$178.69$1,242.12
26$200.00$18.63$181.37$1,060.75
27$200.00$15.91$184.09$876.67
28$200.00$13.15$186.85$689.82
29$200.00$10.35$189.65$500.16
30$200.00$7.50$192.50$307.66
31$200.00$4.61$195.39$112.28
32$113.96$1.68$112.28$0.00

What if things were different?

Save up to three scenarios, then change your inputs to compare the possibilities.

How to use this calculator

  1. Enter your own values in the labeled fields. Check the units and assumptions before comparing results. Only the fields needed for your selected calculation mode are shown.
  2. Your answer updates automatically. Review the calculation steps to see exactly how it was calculated.
  3. Copy, share, save, or download your result. Saved inputs stay on this device.

How the calculation works

Balance next month = balance × (1 + annual rate / 1200) − payment

Enter a balance, a constant nominal annual rate and a fixed payment. The model applies monthly interest before each payment and reduces the final payment to the amount owed. A payment that cannot cover interest is rejected. Changing balances, card fees and daily-interest conventions require a different model.

A worked example

At 0% interest, a $1,200 balance paid at $100 per month takes 12 months and costs $0 in interest.

Reading your result

Use the main result together with its units and supporting figures. Display values are rounded; calculations keep their underlying precision. A change in inputs or assumptions can change the answer. Compare the step-by-step working with your intended use before relying on an estimate.

Frequently asked questions

Is this the card’s minimum payment?

No. It is a fixed amount you choose, not a changing issuer minimum.

Does this include new purchases?

No. The model assumes no further borrowing or fees.

Sources & methodology

This calculator uses the mathematical identity and assumptions stated above. No current rates, prices, or external data are loaded. Conversion tools use international unit definitions.

Formula review: October 24, 2026. Read our methodology.