Mortgage Calculator

Mortgage Calculator

Calculate your monthly mortgage payment including principal, interest, taxes, insurance, PMI, and HOA fees. Get a full amortization schedule, payoff date, biweekly payment comparison, and CSV export. Supports Conventional, FHA, VA, and USDA loan types. All calculations happen in your browser — your data never leaves your device.

🔒 Calculated in your browser — your data never leaves your device

Loan Details

Home Price

Down Payment

Loan Term

Interest Rate

Loan Start Date

Loan Type

Monthly Costs

Property Taxes (annual)

Home Insurance (annual)

PMI Rate (annual %)

PMI applies when down payment is below 20% on Conventional loans.

HOA Fee (monthly)

Annual Cost Increases (optional)

Enter expected annual percentage increases for a more realistic long-term projection.

Property Tax Increase

Home Insurance Increase

HOA Fee Increase

Monthly Payment
—
Principal & interest + costs

Principal & Interest

—

Base loan payment

Total Interest Paid

—

Over the life of the loan

Total Cost of Loan

—

All payments combined

Loan Amount

—

Home price minus down payment

Payoff Date

—

Projected mortgage-free date

Monthly —

Monthly Payment Breakdown

Principal & Interest —

Property Taxes —

Home Insurance —

PMI —

HOA Fee —

Extra Monthly Payment

Interest Saved

—

Months Saved

—

New Payoff Date

—

New Total Interest

—

Paying half your monthly payment every two weeks results in 13 full payments per year instead of 12 — accelerating your payoff and reducing total interest.

Metric	Monthly	Biweekly
Payment Amount	—	—
Payments Per Year	12	26
Total Payments	—	—
Total Interest	—	—
Payoff Date	—	—
Interest Saved	—	—
Time Saved	—	—

Estimates only. Actual payments may vary. Always verify with your lender before making financial decisions.

View:

Period	Date	Interest	Principal	Total Payment	Balance

How to Use the Mortgage Calculator

Enter Your Loan Details

Enter the home price, your down payment (as a dollar amount or percentage — the fields link automatically), the loan term, your interest rate, and the loan start date. Select your loan type to apply the correct PMI rules.

Add Your Monthly Costs

Enter your annual property taxes, annual home insurance, monthly HOA fee, and PMI rate if applicable. Optionally enter annual increase percentages for taxes, insurance, and HOA for a more realistic long-term projection.

Click Calculate

Your monthly payment breakdown, total interest, total loan cost, and projected payoff date appear instantly. The donut chart shows how your payment is divided between principal, interest, taxes, insurance, PMI, and HOA.

Explore Savings and Export

Use the Extra Payment section to see how additional monthly payments reduce your total interest and shorten your loan. Check the Biweekly Comparison for the impact of paying every two weeks. Print or download the full amortization schedule as a CSV file.

Frequently Asked Questions

What is PMI and when is it required?

PMI stands for Private Mortgage Insurance. It is required on Conventional loans when your down payment is less than 20% of the home price. PMI protects the lender if you default. It is typically cancelled once your loan balance reaches 80% of the original home value. FHA loans have their own Mortgage Insurance Premium (MIP) regardless of down payment. VA and USDA loans do not require PMI.

How does making extra monthly payments save money?

Any extra amount you pay each month goes directly toward reducing your principal balance. A smaller principal means less interest accrues each month, which accelerates your payoff timeline. Even a modest extra payment of $100–$200 per month on a 30-year loan can reduce total interest paid by thousands of dollars and shorten the loan by several years.

What is biweekly payment and how does it help?

A biweekly payment schedule means you pay half your monthly payment every two weeks. Because there are 52 weeks in a year, this results in 26 half-payments — the equivalent of 13 full monthly payments instead of 12. That one extra payment per year reduces your principal faster, cutting total interest and typically shortening a 30-year mortgage by several years.

What is the difference between FHA, VA, USDA, and Conventional loans?

Conventional loans are not government-backed and require PMI if the down payment is below 20%. FHA loans are backed by the Federal Housing Administration — they allow lower credit scores and smaller down payments but require mortgage insurance regardless of down payment size. VA loans are available to eligible veterans and active military, require no down payment, and carry no PMI. USDA loans are for eligible rural properties, also require no down payment, and have their own guarantee fee structure.

Is my data safe when using this calculator?

Yes. All calculations happen entirely in your browser. The numbers you enter — home price, down payment, loan details — never leave your device and are never sent to any server.