Mortgage refinance calculator: See how much you can save

Refinancing your mortgage is a big move that can reduce your payments or give you access to cash. Whether you're refinancing to save money or tap into your home equity, you need to start by knowing the basics — how much you'll be paying each month and what you'll owe over the life of the loan — so that you can plan your finances accordingly. CNBC Select has a mortgage refinancing calculator to help. …