Credit card interest calculator
If you’ve got an outstanding balance on your credit card, our handy interest and repayment calculator will help you work out how long it will take to pay it off based on your APR and monthly payments...
Alan has written about money for well over a decade, including for top brands and publishers like The Huffington Post, Wired, Teleread, OpenDemocracy, What Investment, and Fidelity FWD.
He joined MoneySuperMarket as Senior Content Editor in 2025.