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 Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications. Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards.