Mortgage Refinance Calculator – See How Much You Can Save
Thinking about refinancing your mortgage? Our free refinance calculator helps you estimate how much money you could save by lowering your interest rate, changing your loan term, or reducing your monthly payment. Enter your current loan details and compare them with a new rate to instantly see your savings and break-even point.
Refinancing can save thousands — but only if the numbers make sense. This tool shows you exactly when it's worth it.
Modify the values and click calculate to use
Current Mortgage
New Mortgage
Monthly Savings
$201
Refinance Analysis
What Is Mortgage Refinancing?
Refinancing means replacing your current mortgage with a new loan — usually at a lower interest rate or better terms.
Homeowners refinance to:
- ✔ lower monthly payments
- ✔ reduce interest costs
- ✔ shorten loan term
- ✔ remove PMI
- ✔ take cash out
But refinancing also comes with closing costs, so it's important to calculate savings first.
How This Refinance Calculator Works
Our calculator compares:
Your current loan
- remaining balance
- interest rate
- monthly payment
- remaining years
Your new loan
- new interest rate
- new term
- closing costs
Then we calculate:
- 👉 new monthly payment
- 👉 total interest savings
- 👉 lifetime savings
- 👉 break-even time
So you know exactly if refinancing is smart.
Example Scenario
Let's say:
Current loan:
- Balance: $300,000
- Rate: 7%
- Payment: $1,995
New loan:
- Rate: 5.8%
- Closing costs: $6,000
Results:
- New payment: $1,760
- Monthly savings: $235
- Break-even: 26 months
- Total savings: $48,000
That's nearly $50k saved over the loan.
What Is the Break-Even Point?
The break-even point is how long it takes for your monthly savings to cover refinancing costs.
Formula:
Break-even = closing costs ÷ monthly savings
Example:
$6,000 ÷ $235 = 25.5 months
If you plan to stay longer than 26 months → refinancing makes sense.
If you move earlier → you lose money.
This is the most important number.
When Refinancing Makes Sense
Refinancing is usually smart if:
- ✔ rates drop by 0.75–1% or more
- ✔ you plan to stay 3+ years
- ✔ you want lower monthly payments
- ✔ you want to remove PMI
- ✔ you want to shorten the term
These situations often save thousands.
When Refinancing May NOT Be Worth It
Sometimes refinancing doesn't help.
Avoid if:
- ❌ you plan to move soon
- ❌ closing costs are too high
- ❌ small rate difference
- ❌ extending loan too long
- ❌ already near payoff
Always calculate break-even first.
Types of Refinancing
Rate-and-Term Refinance
Lower interest rate or change loan length.
Most common option.
Cash-Out Refinance
Borrow extra cash using home equity.
Good for:
- renovations
- debt consolidation
- large expenses
But increases loan balance.
Short-Term Refinance
Switch 30-year → 15-year.
Higher payment but massive interest savings.
How Much Can You Save by Refinancing?
Even small rate drops make huge differences.
Example:
$300,000 loan
30 years
- 7% → $419k interest
- 6% → $347k interest
Savings = $72,000
Just 1% lower saves life-changing money.
Hidden Costs of Refinancing
Don't forget:
- ✔ appraisal fees
- ✔ lender fees
- ✔ title insurance
- ✔ closing costs
- ✔ points
Typically 2–5% of loan amount.
Always include these in calculations.
Tips to Get the Best Refinance Rate
- ✔ improve credit score
- ✔ compare multiple lenders
- ✔ lower debt-to-income
- ✔ choose shorter term
- ✔ refinance when rates drop
Shopping around can save 0.5–1% easily.
Why Use Our Refinance Calculator?
- ✔ instant savings estimate
- ✔ break-even calculation
- ✔ compare terms easily
- ✔ clear charts
- ✔ no signup
- ✔ completely free
- ✔ built for U.S. homeowners
Know the numbers before you refinance.
Refinance Calculator FAQs
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