BYTETOOLS

Mortgage Calculator

Estimate your monthly mortgage payment including principal, interest, property tax and insurance. See total interest over the life of the home loan.

$1,769.79
Monthly principal + interest
$2,119.79
Total monthly payment
$357,124.57
Total interest paid

Payment breakdown

  • Loan amount (price − down payment): $280,000.00
  • Principal & interest / month: $1,769.79
  • Property tax / month: $250.00
  • Home insurance / month: $100.00
  • Total paid over term: $637,124.57

Estimates only, not financial advice. Excludes PMI, HOA fees and closing costs.

  • Monthly principal and interest from price, down payment and rate
  • Optional annual property tax and home insurance
  • Total monthly payment including escrow items
  • Total interest paid over the full term
  • Any currency symbol, no live rate lookups
  • Private, in-browser math; estimates only, not advice

How to use the Mortgage Calculator

  1. 1

    Select your currency and enter the home price.

  2. 2

    Enter your down payment; the loan amount is the difference.

  3. 3

    Enter the annual interest rate and the term in years.

  4. 4

    Optionally add annual property tax and home insurance.

  5. 5

    Read the monthly principal + interest, total monthly payment and total interest.

About the Mortgage Calculator

The ByteTools Mortgage Calculator estimates the monthly cost of a home loan from the home price, down payment, interest rate and term. It separates principal and interest from optional property tax and home insurance so you see both the loan payment and the true total each month.

It is designed for home buyers comparing houses, budgets and down payments, and for owners weighing a refinance. A clear breakdown shows the loan amount, monthly principal and interest, monthly escrow items and the total interest paid over the term.

All figures are calculated in your browser with nothing uploaded. They are estimates for planning only and not financial advice — they exclude PMI, HOA dues and closing costs, which your lender will confirm.

Frequently asked questions

What is included in a monthly mortgage payment?

A typical payment has principal and interest, plus escrow for property tax and homeowner's insurance. This calculator shows principal and interest and lets you add annual tax and insurance, which it divides by twelve to include in the monthly total.

How does the down payment affect my mortgage?

A larger down payment reduces the loan amount, which lowers both your monthly principal-and-interest payment and the total interest you pay. It can also help you avoid private mortgage insurance, which is usually required when you put down less than 20%.

Does this calculator include PMI, HOA or closing costs?

No. It covers principal, interest, property tax and home insurance. Private mortgage insurance, HOA dues and one-time closing costs are not included, so your real monthly and upfront costs may be higher.

How much interest will I pay over a 30-year mortgage?

Over a long term you often pay a large share of the loan again in interest, especially at higher rates. Enter your numbers to see the exact total interest, then try a shorter term or larger down payment to see how much you could save.

Is my mortgage information kept private?

Yes. Every calculation runs locally in your browser and nothing is uploaded or stored. Your home price, income assumptions and loan details never leave your device.

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