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 Message Thank you! Oops! Related Content How Big is Money? Learn a little about worldwide currency in this fun infographic A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared?