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Mortgage Refinance Calculator

Compare your current mortgage to a new rate and term, and find out exactly how many months it takes to break even on closing costs.

Current loan

$
%
years

New loan

%
years
$

Estimated monthly savings

$265

Current payment

$2,113

New payment

$1,847

Break-even point

23 months

Lifetime interest — current loan$384,477

Lifetime interest — new loan$364,975

Is refinancing worth it?

Refinancing replaces your existing mortgage with a new one — usually to secure a lower interest rate, change your loan term, or tap into home equity. Whether it's worth it comes down to a simple trade-off: the upfront closing costs versus your ongoing monthly savings. This calculator computes exactly how many months it takes to recoup those costs.

A worked example

Say you refinance a $280,000 balance from 7.25% down to 6.25% and pay $6,000 in closing costs. Your principal & interest payment drops from about $1,910 to $1,724/month — roughly $186/month in savings. Dividing the $6,000 closing cost by that $186 monthly savings gives a break-even point of about 32 months, or just under 3 years. Stay in the home past that point and the refinance is a net win; move sooner and you'll have paid more in closing costs than you saved.

Common refinance types

  • Rate-and-term refinance: changes your rate and/or term without changing your balance meaningfully — the scenario this calculator models.
  • Cash-out refinance: borrows against your home equity, increasing your loan balance in exchange for cash at closing.
  • Streamline refinance (FHA/VA): a simplified process for existing FHA or VA borrowers refinancing into a new FHA or VA loan, often with reduced documentation.

Monthly savings vs. lifetime cost

A lower monthly payment isn't the whole story. If you refinance a loan you've already paid down for several years back into a fresh 30-year term, you can end up paying more total interest over time even though your monthly payment drops. This calculator shows both numbers side by side so you can make an informed trade-off between cash flow today and total cost over time.

Want to see how today's rates compare across a range of options first? Try the Mortgage Rate Calculator.

Frequently asked questions

What is a refinance break-even point?+

It's the number of months it takes for your monthly savings from a lower rate to fully offset the closing costs of refinancing. If you plan to stay in your home longer than the break-even point, refinancing is typically worth considering.

What closing costs should I expect on a refinance?+

Refinance closing costs typically run 2%–5% of your loan amount, covering things like origination fees, appraisal, title insurance, and recording fees — similar to a purchase loan. See our Closing Cost Calculator for a broader estimate.

Does refinancing always save money?+

Not always. Refinancing to a lower rate but resetting your loan term back to 30 years can increase your total lifetime interest even while lowering your monthly payment. This calculator shows lifetime interest for both scenarios so you can weigh monthly savings against total cost.

When does refinancing make the most sense?+

Refinancing tends to make the most sense when rates have dropped meaningfully since you took out your loan, when you plan to stay in the home well past your break-even point, or when you want to switch loan types (e.g., from an adjustable to a fixed rate) or tap home equity.

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This calculator provides estimates for general educational purposes only and is not financial, legal, or lending advice. Actual loan terms, taxes, insurance, and qualification requirements vary by lender, location, and individual circumstances. See our full disclaimer.