Credit & Cards

The fine print, in real numbers.

Minimum payments and 0% offers are built to be hard to compare. These tools show the real timeline and the real cost.

See the calculators All topics

Calculators

Run your numbers

Pick the question on your mind. Each one shows its working.

Payoff

Credit Card Payoff

How long your balance really takes to clear — and the interest it costs on the way.

Transfer

Balance Transfer Savings

Does a 0% offer beat the fee? Compare staying put vs transferring, with the intro window.

Compounding

Compound Interest

Principal, rate, years, frequency. Final balance and the interest that did the work.

Why it matters

Interest is the product.

Card issuers earn most when a balance lingers, so every default is tuned to keep you paying slowly. Seeing the full payoff timeline — and what a transfer fee really buys — turns the fine print back into a decision you control.

Educational tools, not financial advice. Full disclosure.