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 Question Thank you! Oops! Related Content Data Thieves from Outer Space Learn about the dangers of internet fraud with this highly educational and fun “pulp” comic. How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.