California Mortgage Refinance Calculator

By SoFi Editors | Updated November 10, 2025

Refinancing your mortgage can be a strategic way to save on monthly payments, adjust loan terms, or access home equity. A California mortgage refinance calculator helps you assess the financial impact of refinancing by providing estimates of potential savings and costs. Use this guide to learn how to use a California mortgage refinance calculator so you can make an informed decision about whether to trade your old loan for a new one.

Key Points

•  A California mortgage refinance calculator helps homeowners estimate monthly payments, total interest costs, and the break-even point, which are key in making a decision to refinance.

•  Extending the term of your loan can lower monthly payments but increase total interest paid, while shortening the term can do the opposite, so consider your financial goals carefully.

•  The break-even point, calculated using a refinance calculator, helps determine if the savings from refinancing outweigh the initial costs within a reasonable time frame.

•  Improving your credit score can enhance your refinancing options and help you secure better interest rates, potentially saving you thousands of dollars over the life of the loan.


California Mortgage Refinance Calculator


Calculator Definitions

•  Remaining loan balance: The remaining loan balance represents the principal amount you still owe on your home loan.

•  Current/New interest rate: Interest is the percentage of the total loan amount that the lender charges the borrower for the privilege of borrowing money. The difference, even slight, between your current interest rate and a potential new one can significantly impact both your monthly payments and your overall savings over the duration of the loan.

•  Loan term: The loan term is the length of time you have to repay your refinanced mortgage. Opting for a shorter term can reduce your total interest costs, but a longer term offers lower monthly payments. Use the calculator to see the potential impact of various terms on your payments and overall savings.

•  Points: Mortgage points allow you to prepay a portion of the interest due on a home loan at closing. Each point typically costs 1% of the total loan amount and can reduce your interest rate by 0.25%. Consider the long-term savings when deciding to purchase points.

•  Other costs and fees: Refinancing your mortgage comes with various costs, including origination fees, appraisal fees, attorney fees, and closing costs. These expenses typically range from 2% to 5% of the new loan amount.

•  Monthly payment: Your monthly mortgage payment typically includes both principal and interest. A refinance mortgage calculator can help you compare your current monthly payment with the estimated payment after refinancing to potentially secure better terms. Lower monthly payments alone don’t indicate whether a mortgage refinance will save you money over the long term.

•  Total interest: Total interest, which you pay the lender over the life of the loan, is the cost of borrowing money. Comparing the total interest payments associated with your current mortgage to the projected total interest of a potential refinance loan is an important step in determining if the new loan will save you money over the long term.