Use this free mortgage refinance calculator to estimate your new monthly payment and compare it with your current mortgage payment. Enter your outstanding loan balance, current interest rate, proposed refinance rate, and loan term to see how the estimated payment changes.
Estimate Your New Mortgage Payment
The calculator estimates monthly principal and interest using your outstanding mortgage balance, interest rate, and repayment term. Comparing the current rate with a proposed lower rate can help you understand whether refinancing might reduce your monthly payment.
Your actual payment will depend on your lender’s terms, the amount financed, and the final interest rate. This estimate does not include property taxes, homeowners insurance, mortgage insurance, or refinancing fees.
Calculate Potential Monthly Refinancing Savings
Your estimated monthly savings are the difference between the payment calculated at your current rate and the payment calculated at the proposed rate. A lower payment may give you more room in your monthly budget, but the result depends on the rate and term you select.
For a fair comparison, consider how many years remain on your existing mortgage. If the new loan extends repayment over a longer period, the monthly payment could decrease even if you pay interest for more years.
Understand the Long-Term Cost of Refinancing
A lower monthly payment does not necessarily mean a lower total borrowing cost. Refinancing may involve closing costs, a new repayment schedule, and additional interest if you restart a longer loan term. These factors can offset some or all of your monthly payment savings.
Before deciding, compare the total interest remaining on your current mortgage with the interest and fees associated with the proposed loan. Also consider how long you expect to keep the property or mortgage.
Find Your Refinancing Break-Even Point
Closing costs affect how quickly refinancing may pay for itself. If your new payment is lower, divide your estimated refinancing costs by the monthly payment reduction to calculate a basic break-even estimate.
Use our refinance break-even calculator to estimate how long it could take for monthly payment savings to recover your refinancing costs. The result is most useful when the payment figures are comparable and the savings remain consistent.
Compare Mortgage Payments Before You Refinance
Compare the proposed loan with other repayment options before making a decision. Our mortgage payment calculator helps estimate monthly principal and interest, while the mortgage interest calculator helps you explore borrowing costs.
You can also use the mortgage payoff calculator to examine your existing repayment plan and consider how refinancing might affect your payoff timeline.
Frequently Asked Questions
Calculation Methodology & Data Transparency: This interactive tool was developed by Ratiranjan Singha using standard financial amortization algorithms. Estimated rates, limits, and guidelines are benchmarked against public data from primary institutions, including the CFPB and Freddie Mac. Results are provided for educational and estimation purposes only.



