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 Replacing Your Medicare Card Learn how to replace your lost, stolen, or damaged Medicare card in this helpful article. The Cost of Medical Care Learn about the risks of not having health insurance in this informative article. How the Federal Reserve Works Each day, the Fed is behind the scenes supporting the economy and providing services to the U.S. financial system.