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 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. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out.