Credit Card Payoff & Total Interest Paid Calculator Minimum monthly payments on credit cards might feel affordable, but what is that “balance due” really going to cost you – and how long until it’s paid off? Plug a few details into our calculator and hit “View Report” to see an estimated payoff date and the total interest amount. Information and interactive calculators are made available to you only as self-help tools for your independent use and are not intended to provide actual loan details or provide investment/tax advice. We encourage you to seek personalized advice from a Connexus representative regarding all personal finance issues.