Introduction
Minimum payments can keep a card balance alive for years. A payoff calculator shows how a fixed monthly payment changes the payoff date and the total interest.
Quick answer
- Paying more than the minimum shortens the payoff time sharply.
- Interest is charged monthly, so the balance must fall faster than interest grows.
- No new spending is assumed in the calculation.
What is it?
Each month, interest is added, then your payment is taken off. If your payment only just covers interest, the balance barely moves.
How to use the calculator, step by step
- Enter your numbers in the calculator linked above.
- Press Calculate.
- Check the main result and the total, not just the first number.
- Try a second version — a different rate, term or payment — and compare the totals.
Worked example
Balance £3,000 at 20% APR, paying £150 a month: about 24.5 months, total paid about £3,679.51, interest about £679.51.
Common mistakes
Paying only the minimum; adding new spending while trying to pay off; missing payments and adding fees.
Frequently asked questions
Is the calculator result exact? No, it is an estimate for learning and planning, based on the numbers you enter and the assumptions stated on the calculator page.
Should I check with a professional? Yes, for a mortgage, loan, tax or investment decision, check with your lender, bank, tax authority or a qualified adviser before you decide.
Can I use this in the US, UK or Canada? The maths is the same, but rates, tax bands and lender rules differ by country. Use the numbers and rules for your country, and check the official source where a rate or band matters.
Conclusion and next step
Try your own numbers in the calculator, compare the totals, and read the next calculator guide from the homepage when you are ready.
Disclaimer: This article and calculator are for information and education only. Results are estimates and not financial advice. Please check with your lender or a qualified adviser before making a financial decision.