Can I Refinance My Mortgage? This calculator can help determine whether it makes sense to refinance your mortgage. 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 Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock. The History of Currency Currency has been around for a long time. Here’s a quick history lesson.