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 Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. The Latte Lie and Other Myths Check out this video to begin separating fact from fiction. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college.