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  1. Home
  2. Financial Tools
  3. Refinance Calculator

Refinance Calculator

Calculate if refinancing your mortgage makes sense. Compare monthly payments, total interest, and see your break-even point.

By Joseph Orduna·Reviewed April 16, 2026·How this works
Formula:PMT = P × r(1+r)^n / ((1+r)^n - 1)

Refinance Analysis

Monthly Savings

$261

Lower payment

Break-Even

23 months

Good

Current Payment$2,069
New Payment$1,808
Interest Savings-$30,025
Lifetime Savings-$36,025

Consider carefully

The break-even period may be too long or savings may not justify the costs.

Current Loan

Your existing mortgage details

$
50,0001,000,000
%

About 25 years, 0 months remaining

New Loan Terms

Refinance options to compare

%
310
$

Typically 2-5% of loan amount ($5,600 - $14,000)

Current vs New Loan

Current Loan

Monthly Payment$2,069
Interest Rate7.5%
Remaining Term25 years
Total Interest$340,753

New Loan

Monthly Payment$1,808
Interest Rate6.5%
New Term30 years
Total Interest$364,777

Break-Even Analysis

23 months to break even

Closing Costs

$6,000

Monthly Savings

$261

Break-Even

23 mo

If you plan to stay in your home longer than 23 months (1 years, 11 months), refinancing will save you money.

Rate Comparison

7.25% (0.25% lower)

Break-even: 51 months

$118/mo

Save -$87,616

7.00% (0.5% lower)

Break-even: 37 months

$166/mo

Save -$70,243

6.75% (0.75% lower)

Break-even: 29 months

$214/mo

Save -$53,044

6.50% (1% lower)

Break-even: 23 months

$261/mo

Save -$36,025

6.00% (1.5% lower)

Break-even: 17 months

$354/mo

Save -$2,545

Refinance Analysis

Monthly Savings

$261

Lower payment

Break-Even

23 months

Good

Current Payment$2,069
New Payment$1,808
Interest Savings-$30,025
Lifetime Savings-$36,025

Consider carefully

The break-even period may be too long or savings may not justify the costs.

What if rates were lower?

See how different rates affect your refinance savings

3.00%6.50%7.50%
Monthly Savings
$261
Break-Even
23 mo
Lifetime Savings
-$36,025

Personalized Insights

4 insights based on your inputs

Consider Carefully

Break-even of 23 months is long. Make sure you'll stay in the home that long to benefit.

Significant Rate Drop

A 1.00% reduction is typically worth refinancing if you plan to stay 3+ years.

Extending Your Loan

Refinancing to 30 years extends your payoff. You'll pay more total interest even with lower rate.

Related Calculators

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APR Calculator

Compare true loan costs

View all finance calculators

Frequently Asked Questions

Generally refinance when you can lower your rate by 0.5-1% or more, plan to stay in the home past your break-even point, have good credit (720+), and have at least 20% equity. Also consider refinancing to remove PMI, switch loan types, or access cash-out equity.

When rate drops 0.5-1%+, you'll stay past break-even, have 20%+ equity and good credit.

The break-even point is when your monthly savings equal the closing costs paid. After this point, you start actually saving money. Calculate by dividing closing costs by monthly savings. If break-even is 24 months and you plan to stay 5+ years, refinancing makes sense.

When monthly savings equal closing costs. Break-even = Closing costs / Monthly savings.

Closing costs typically range from 2-5% of the loan amount. This includes appraisal ($300-600), title insurance ($500-2000), origination fees (0.5-1%), recording fees, and other lender fees. Some lenders offer "no-closing-cost" refinancing with higher rates.

2-5% of loan amount. Includes appraisal, title insurance, origination fees.

Cash-out refinancing lets you borrow against home equity for renovations, debt consolidation, or major expenses. Rates are slightly higher than regular refinance. Only do this for value-adding purposes, not lifestyle inflation. Remember you're increasing your debt and risk.

Use for value-adding purposes only. Increases debt and slightly higher rates.

Rate-and-term refinancing changes your interest rate and/or loan term without borrowing more. Cash-out refinancing lets you borrow more than you owe and pocket the difference. Cash-out has higher rates and stricter requirements (usually max 80% LTV).

Rate-and-term changes rate/term only. Cash-out lets you borrow equity as cash.

How this works

Calculations are run entirely in your browser. No inputs are sent to our servers and no account is required. Formulas follow standard US definitions from the IRS and the CFPB where applicable; international users should confirm local tax and regulatory rules apply.

What this tool can’t do

When to consult a professional

This is a software engineering tool, not financial advice. Run the math here, then take the result to a certified financial planner, CPA, or your bank before making a decision that materially affects your money.

Sources

  1. [1]
    Consumer Financial Protection Bureau (CFPB)
    Official source·consumerfinance.gov·Accessed Apr 21, 2026

    US consumer finance regulator; authoritative on mortgage disclosures, APR rules, credit cards.

Not financial advice

This tool is an educational calculator built by a software engineer, not a licensed financial advisor. Results are informational only. Before making financial decisions, consult a certified financial planner, CPA, or your bank.

Consumer Financial Protection Bureau →

Joseph Orduna
Joseph OrdunaFounder & Software Engineer

Full-stack software engineer specializing in embedded systems, web architecture, and AI/ML. Founder of Practical Web Tools. Built the gesture-controlled drone IP acquired by KD Interactive (Aura Drone, sold on Amazon).

Full bioLinkedIn

Refinance Analysis

Monthly Savings

$261

Lower payment

Break-Even

23 months

Good

Current Payment$2,069
New Payment$1,808
Interest Savings-$30,025
Lifetime Savings-$36,025

Consider carefully

The break-even period may be too long or savings may not justify the costs.