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 What Is My Risk Tolerance? This questionnaire will help determine your tolerance for investment risk. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. FIRE Retirement This short, informative article teaches the basics of the FIRE movement.