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 Question Thank you! Oops! Related Content Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more. The History of Currency Currency has been around for a long time. Here’s a quick history lesson.