# Mortgage Calculator

## Monthly Payment:

## Total Payment:

## Total Interest:

## Amortization Schedule:

Month | Payment | Principal | Interest | Balance |
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A mortgage is a financial instrument that enables individuals to purchase real estate, such as homes or commercial properties, by borrowing money from a lending institution. It's a complex financial arrangement that involves a loan secured by the property itself, which serves as collateral. This article will provide a detailed explanation of what a mortgage is and how to calculate its various aspects.

A mortgage is a legal agreement between a borrower and a lender, typically a bank or mortgage company. In this agreement, the lender provides funds to the borrower to purchase a property, and in return, the borrower agrees to repay the loan over a specified period, often decades.

Before delving into calculations, it's important to understand some key mortgage terms:

**Principal**: The initial loan amount.**Interest Rate**: The cost of borrowing money, usually expressed as an annual percentage.**Loan Term**: The duration over which the mortgage is to be repaid.**Monthly Payment**: The fixed amount paid by the borrower each month.**Amortization**: The process of paying off a mortgage over time through regular payments.

The most critical aspect of mortgage calculation is determining the monthly payment. This calculation is based on the following formula:

**Monthly Payment (M) = P [r(1 + r)^n] / [(1 + r)^n – 1]**

Where:

**M**is the monthly payment**P**is the principal loan amount**r**is the monthly interest rate (annual rate divided by 12)**n**is the number of monthly payments (loan term in years multiplied by 12)

Let's calculate the monthly payment for a mortgage of $250,000 with a 4% annual interest rate and a 30-year loan term.

**M = $250,000 [0.04/12 (1 + 0.04/12)^(3012)] / [(1 + 0.04/12)^(3012) - 1]**

**M ≈ $1,193.54**

The monthly payment for this mortgage would be approximately $1,193.54.

Over the life of the mortgage, you'll also want to know the total amount paid and the total interest paid. These can be calculated as follows:

**Total Payment = M * n**

**Total Interest = Total Payment - P**

For our example:

**Total Payment ≈ $1,193.54 30 12 ≈ $429,674.40**

**Total Interest ≈ $429,674.40 - $250,000 ≈ $179,674.40**