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 Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. 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. The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out.