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.

Thinking about refinancing your mortgage? Our free refinance calculator helps you

Modify the values and click calculate to use

Current Mortgage

New Mortgage

Monthly Savings

$201

Refinance Analysis

Current Monthly Payment$2,097.64
New Monthly Payment$1,896.20
Monthly Savings$201.44
Closing Costs$5,000.00
Break-Even (Months)$25.00
Total Savings$67,518.20

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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