Credit Card Payoff Calculator

Payoff time, total interest and minimum-payment trap

Quick Answer

Credit Card Payoff Calculator: Payoff time, total interest and minimum-payment trap. Months to pay off n = −ln(1 − B×r÷P) ÷ ln(1+r), requires P > B×r.

Credit card APR is usually 15–24% (China installments ≈ 13–17% real APR). Paying only the minimum can take 10+ years.

Balance owed

Annual Rate (% APR)

Monthly payment

Time to pay off24 months≈ 2.0 years

Total paid35,934.34CNY

Total Interest5,934.34CNY

Interest costs 19.8% of the balance.

Minimum-payment trap: 10% minimum on this balance = 3,000 in month 1, of which 450 is pure interest — only 2,550 reduces debt.

Calculation steps

1Monthly rate i = 18% ÷ 12 = 1.5000%
2Months n = −ln(1 − B×i ÷ P) ÷ ln(1 + i) = 24.0 → 24 months
3Total = payment × n = 35,934.34; interest = 5,934.34

Common borrowing costs (real APR)

Product	Real APR
Mortgage (commercial)	3.3%–3.9%
Consumer loan (bank)	3.5%–8%
Credit card installment	13%–17%
Credit card revolving (daily 0.05%)	18.25%
Online microloan	18%–24%

Strategy: pay off the highest-APR debt first (avalanche). If your APR exceeds ~15%, consolidating into a lower-rate bank consumer loan usually saves more than any budgeting trick. Revolving interest accrues daily and compounds monthly — every extra payment immediately cuts future interest.

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How to Use

Enter amounts and terms: fill principal, rate and period in the Credit Card Payoff Calculator (defaults work for a quick try).
Instant results: key figures and cost breakdown update live as you type.
Compare scenarios: tweak any parameter to compare costs and returns across plans.
Copy key numbers: one-click copy for records or sharing with your advisor.

Key Points

Credit Card Payoff Calculator is a free online finance tool — open and use, no sign-up.
All calculations run locally in your browser; your data never leaves the device.
Key capability: Payoff time, total interest and minimum-payment trap.
Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Credit card amortization

Months to pay off n = −ln(1 − B×r÷P) ÷ ln(1+r), requires P > B×r

Total interest = n×P − B (B balance, P payment, r monthly rate)

Minimum-payment trap: ¥10,000 at 18% APR takes 9+ years

FAQ

How do I use the Credit Card Payoff Calculator?

Open the page and fill in the input fields — results update automatically. Payoff time, total interest and minimum-payment trap.

Are the results accurate?

Yes. Standard financial formulas and published rate data are used. For official figures, consult your financial institution.

Is it free? Do I need to sign up?

Completely free. No registration, login or download required.

Can I use the results for financial decisions?

Results are for reference. Consult a licensed financial advisor before major decisions.

Does it work on mobile?

Yes. Fully responsive on phones, tablets and desktops.

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Source & Updates

Based on published rate tables and standard financial formulas. Last updated: 2025-07

Authoritative sources:

Last updated: 2026-08-06

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Cite this page: YiJianSuan. Credit Card Payoff Calculator[EB/OL]. https://www.yijiansuan.com/en/c/finance/credit-card-payoff

Results provided by this tool are for reference only and do not constitute professional advice.

Common borrowing costs (real APR)

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How to Use

Key Points

Formula & How It Works

FAQ

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Source & Updates

Common borrowing costs (real APR)