Finance

Personal Credit Card Monthly Interest Calculator (25 Years)

Estimate monthly interest on a card balance. This personal version uses a 25-year planning term as its starting point.

Formula

Monthly interest equals balance times annual rate divided by 100 divided by 12.

How it works

Paying only interest leaves the balance unchanged. Paying more than interest reduces the balance.

FAQs

Why is card interest high?
Card rates are usually higher than loan rates, so balances grow quickly if only minimum payments are made.

Is this personal calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.