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 Why Medicare Should Be Part of Your Retirement Strategy How Medicare can address health care needs in your retirement strategy. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Did You Know This Fact About Foggy Conditions? Foggy conditions make driving more hazardous, but high beams aren't the answer.