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 Should You Ever Retire? A growing number of Americans are pushing back the age at which they plan to retire. Or deciding not to retire at all. Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.