Mortgage Calculator

6 steps to calculate your payments using a mortgage calculator

Here’s how to use our mortgage calculator to easily estimate payments:

  1. Enter your home price. In the Home price field, input the price of the home you’re buying (or the current value of your home if you’re refinancing).
  2. Enter your down payment. In the Down payment field, input the amount of your down payment (if you're buying) or the amount of equity you have (if you're refinancing). You can input either a dollar amount or percentage.
  3. Enter your loan term. In the Loan term field, enter the length of your loan — usually 30 years, but could be 20, 15 or 10.
  4. Enter your interest rate. In the Interest rate field, input the rate you expect to pay or are currently paying. Our calculator defaults to the current average rate, but you can adjust this percentage.
  5. Enter your ZIP code. In the ZIP code field, input your zip code.
  6. Click Update.

Bankrate's calculator also estimates property taxes, homeowners insurance and homeowners association fees. You can edit these amounts, or even edit them to zero, as you're shopping for a loan.

In addition, the calculator allows you to input extra payments (under the “Amortization” tab). This can help you decide whether to prepay your mortgage and by how much.

Typical costs included in a mortgage payment

The major part of your mortgage payment is the principal and the interest. The principal is the amount you borrowed, while the interest is the sum you pay the lender for borrowing it. Your lender also might collect an extra amount every month to put into escrow, money that the lender (or servicer) then typically pays directly to the local property tax collector and to your insurance carrier.

Mortgage payment formula

For the mathematically inclined, here's a formula to help you calculate mortgage payments manually:

Symbol
M Total monthly mortgage payment
P Principal loan amount
r Monthly interest rate: Lenders provide you an annual rate so you’ll need to divide that figure by 12 (the number of months in a year) to get the monthly rate. If your interest rate is 5 percent, your monthly rate would be 0.004167 (0.05/12=0.004167).
n Number of payments over the loan’s lifetime: Multiply the number of years in your loan term by 12 (the number of months in a year) to get the number of payments for your loan. For example, a 30-year fixed mortgage would have 360 payments (30x12=360).

This formula can help you crunch the numbers to see how much house you can afford. Alternatively, you can use this mortgage calculator to help determine your budget.

Terms explained

An online mortgage calculator can help you quickly and accurately predict your monthly mortgage payment with just a few pieces of information. It can also show you the total amount of interest you’ll pay over the life of your mortgage.

Here are some useful terms to understand when evaluating your mortgage:

Ways a mortgage calculator can help

Our mortgage calculator can help guide many of the decisions related to buying a home or refinancing your mortgage, such as:

Deciding how much house you can afford

If you're not sure how much of your income should go toward housing, start with the 28/36 rule, which dictates you spend no more than 28 percent of your gross income on housing costs and no more than 36 percent of your gross income on overall debt, including housing costs.

Say Joe makes $60,000 a year. That's a gross monthly income of $5,000 a month. Twenty-eight percent of that equals $1,400. If Joe were to abide by the 28/36 rule, he’d spend no more than $1,400 on a mortgage payment each month.

Meeting the 28/36 rule isn’t always doable or desirable, however.

Many prospective homeowners are tempted to 'stretch' when buying a home since it can literally be the culmination of a dream,” says Mark Hamrick, Bankrate senior economic analyst. “At the same time, given that this is one of the most expensive and consequential purchases of a lifetime, the transaction needs to co-exist with our many other financial goals including saving for retirement, saving for emergencies and paying down debt.

“Being conservative and cautious with a home purchase is advisable,” Hamrick says. “If it turns out that income rises down the road, that presents an opportunity to sock money away to pay for repairs, maintenance and renovations later.”

How to lower your monthly mortgage payment

If the monthly payment you're seeing in our calculator looks a bit out of reach, you can try some tactics to reduce the hit. Play with a few of these variables:

Next steps on getting a mortgage

A mortgage calculator is a springboard to help you estimate your monthly mortgage payment and understand what it includes. Once you have a good idea of your budget, you might move on to these next steps:

Compare mortgage rates for different loan types

Loan Type Purchase Rates Refinance Rates
30-Year Loan 30-Year Mortgage Rates 30-Year Refinance Rates
20-Year Loan 20-Year Mortgage Rates 20-Year Refinance Rates
15-Year Loan 15-Year Mortgage Rates 15-Year Refinance Rates
10-Year Loan 10-Year Mortgage Rates 10-Year Refinance Rates
FHA Loan FHA Mortgage Rates FHA Refinance Rates
VA Loan VA Mortgage Rates VA Refinance Rates
ARM Loan ARM Mortgage Rates ARM Refinance Rates
Jumbo Loan Jumbo Mortgage Rates Jumbo Refinance Rates
The table above links out to loan-specific content to help you learn more about rates by loan type.