How to calculate your mortgage payment

Josh Neimark

Calculating your mortgage payment involves several factors, including the amount you borrow (the principal), the interest rate, the loan term (the length of time you have to repay the loan), and any additional fees or costs associated with the loan. Here are the steps to calculate your mortgage payment:

Determine your loan amount (principal): This is the total amount of money you borrow to buy a home. For example, if you are purchasing a $300,000 home and making a down payment of $60,000, your loan amount (principal) will be $240,000.


Determine your interest rate: Your interest rate is the annual percentage rate (APR) charged by your lender for the loan. For example, if your interest rate is 3.5%, your monthly interest rate will be 0.0035 (3.5% divided by 12 months).


Determine your loan term: Your loan term is the length of time you have to repay the loan. For example, if you have a 30-year mortgage, your loan term will be 360 months (30 years x 12 months).


Calculate your monthly mortgage payment: You can use a mortgage payment calculator or the following formula to calculate your monthly mortgage payment:


P = L[c(1 + c)^n]/[(1 + c)^n - 1]


Where:

P = monthly mortgage payment

L = loan amount (principal)

c = monthly interest rate

n = loan term (number of months)


For example, if you have a $240,000 loan amount, a 3.5% interest rate, and a 30-year loan term, your monthly mortgage payment would be:


P = 240,000[0.0035(1 + 0.0035)^360]/[(1 + 0.0035)^360 - 1]

P = $1,078.24


So your monthly mortgage payment would be $1,078.24. Keep in mind that this is just an estimate, and your actual mortgage payment may vary depending on additional fees or costs associated with your loan.

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