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 Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.