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Mortgage Calculator

Calculate monthly mortgage payments, total interest, and view amortization for home loans with taxes and insurance.

Mortgage Calculator tool

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Example

Input: $350,000 home, 20% down, 6.5% for 30 years, $3,000/yr property tax, $1,200/yr home insurance

Result: Total Monthly Payment $2,119.79 (Principal and Interest $1,769.79 on a $280,000.00 loan)

The $280,000 loan at 6.5%/12 per month over 360 payments costs $1,769.79; adding $250.00 tax and $100.00 insurance gives $2,119.79. No PMI applies at 20% down.

Principal and Interest on a $300,000 Mortgage

Rate15-Year Payment30-Year Payment30-Year Total Interest
5%$2,372.38$1,610.46$279,767
5.5%$2,451.25$1,703.37$313,212
6%$2,531.57$1,798.65$347,515
6.5%$2,613.32$1,896.20$382,633
7%$2,696.48$1,995.91$418,527
7.5%$2,781.04$2,097.64$455,152

Monthly principal and interest only. Taxes, insurance and PMI come on top.

  1. Enter the home price and your down payment as a percentage.
  2. Set the mortgage interest rate and loan term (10, 15, 20, 25, or 30 years).
  3. Enter the annual property tax, annual homeowner insurance, and PMI rate (set any to 0 to exclude it).
  4. View the monthly mortgage payment broken down by principal, interest, taxes, and insurance.
  5. Review the yearly amortization schedule and balance chart showing how your balance decreases over time.

What Goes Into a Monthly Mortgage Payment

Your monthly mortgage payment is more than the loan itself. It usually adds up principal, interest, property tax and home insurance, plus PMI if your down payment is under 20%. On a $350,000 home with 20% down at 6.5% for 30 years, that comes to $2,119.79 a month with $3,000 a year in tax and $1,200 a year in insurance.

Enter the home price, the down payment as a percentage, the rate and a term of 10, 15, 20, 25 or 30 years. Then add the yearly property tax, home insurance and PMI rate. Set any of these to 0 to leave it out. The tool shows the total monthly payment and each part of it. It also shows the loan amount, total interest and the total cost over the term, plus a yearly schedule and a chart of the balance falling.

PMI (private mortgage insurance) protects the lender, not you. This tool adds it only when the down payment is below 20%. It stops charging PMI once the balance falls to 78% of the home price, which is when lenders must drop it by law if you are current on payments. It also shows how many months you pay it.

The rate has a big effect over 30 years. On a $300,000 loan, going from 6% to 7% adds about $197 a month and roughly $71,000 in total interest, as the table below shows. A 15-year term costs more each month but saves a large amount of interest.

Your real payment may differ. Lenders set taxes and insurance through escrow, and HOA fees or closing costs are not included here. Use the result to plan, then compare official loan estimates from lenders. For other loans, try the Loan and EMI Calculator.

Formula / How It Works

M = P x [r(1+r)^n] / [(1+r)^n - 1], where M = monthly payment, P = loan principal, r = monthly interest rate, n = number of payments. Add monthly property tax, insurance, and PMI (when applicable) for the total payment.

Sources

Frequently Asked Questions

Most payments include four parts, often called PITI: principal, interest, property taxes and home insurance. If you put down less than 20%, PMI is usually added too. Taxes and insurance are often paid through an escrow account. This tool includes all of these but not HOA fees or closing costs.
In the US, you can ask your lender to cancel PMI once your balance reaches 80% of the home's original value. Lenders must end it automatically at 78% if you are current on payments. This tool stops PMI at 78% of the home price and shows how many months it lasts.
It depends on your budget. A 15-year loan has a higher payment but far less total interest, and rates are often lower. On $300,000 at 6.5%, the 15-year payment is about $2,613 against $1,896 for 30 years. The 30-year loan, though, costs about $383,000 in interest over its life. A 30-year loan gives more room in your monthly budget.
A common rule of thumb says housing costs should stay under about 28% of your gross monthly income, and all debt payments under about 36%. Lenders also look at your credit, savings and job history. Use this tool to test prices, then speak to a lender or housing counselor before you commit.
On a $300,000 30-year loan, moving from 6% to 7% raises the principal and interest payment from $1,798.65 to $1,995.91. That is about $197 more a month. Over 30 years it adds roughly $71,000 in interest. Small rate differences matter, so compare several lenders.

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