Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Money Draining Food Myths These food myths will really put a drain on your wallet. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card. Building Your Legacy A four-step framework for building a personal legacy.