Mortgage Refinance Calculator
Compare your current mortgage against a new refinance offer to see your monthly savings and closing cost breakeven point.
Current mortgage
New refinance offer
How to Use the Mortgage Refinance Calculator
Enter your current loan balance, rate, and remaining term alongside your new loan’s rate, term, and estimated closing costs to compare payments and see your break-even point.
How Mortgage Refinancing Works
Lowering Your Rate: An Example
A $320,000 balance at 7.5% with 27 years remaining costs about $2,318/month. Refinancing into a 30-year loan at 6% drops the payment to approximately $1,919/month — saving about $399/month, or $4,788/year.
Calculating Your Break-Even Point
Closing costs typically run 2–5% of the loan amount ($6,400–$16,000 on a $320,000 refinance). Divide total closing costs by monthly savings to find your break-even month — in this example, about 20 months.
Types of Mortgage Refinances
- Rate-and-term refinance
- Cash-out refinance
- Shortening your term (e.g., 30-year to 15-year)
- Switching loan types (ARM to fixed)
How Refinancing Resets Your Amortization Clock
Refinancing 10 years into a 30-year loan into another 30-year loan extends your total payoff timeline by 10 years, even with a lower payment. Some borrowers offset this with a shorter new term.
When Is the Right Time to Refinance
Many experts suggest exploring a refinance if you can lower your rate by at least 0.5–1%, depending on closing costs and how long you plan to stay in the home.
Frequently Asked Questions
Compare closing costs to monthly savings to find your break-even point. If you’ll stay past that point, refinancing is generally worthwhile.
Most conventional refinances require at least 620, with better rates available above 740.
Yes, unless you choose a shorter new term.
A rate-and-term refinance changes terms without significantly changing the balance. A cash-out refinance increases your balance so you can access equity in cash.
Closing costs generally range from 2% to 5% of the loan amount.
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Disclaimer
This calculator provides estimates for educational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed mortgage professional for personalized guidance.