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 Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. Personal Finance Calendar Use this handy calendar to remember the year’s most important financial dates.