Simple Mortgage Calculator Ontario

This simple mortgage calculator helps you estimate your monthly payments when buying a home in Ontario. Enter your loan amount, interest rate, and amortization period to get an instant calculation of your mortgage payments.

How to Use This Calculator

Using this mortgage calculator is straightforward. Follow these steps:

Enter the loan amount - the total amount you're borrowing for your home.
Enter the interest rate - the annual percentage rate (APR) for your mortgage. For Ontario mortgages, this is typically between 4% and 7%.
Select your amortization period - the length of time in years you plan to pay off your mortgage. Common options are 5, 10, 15, 20, 25, or 30 years.
Click the Calculate button to see your estimated monthly payment.

The calculator will display your monthly payment, total interest paid over the life of the loan, and a breakdown of how much principal and interest you'll pay each month.

Mortgage Formula

The calculation for your monthly mortgage payment is based on the standard mortgage formula:

Mortgage Payment Formula

M = P [i(1 + i)ⁿ] / [(1 + i)ⁿ - 1]

Where:

M = Monthly payment
P = Principal loan amount
i = Monthly interest rate (annual rate divided by 12)
n = Number of payments (amortization period in years × 12)

This formula calculates the fixed monthly payment required to pay off a loan with a fixed interest rate over a specified period.

Worked Example

Let's look at an example to see how the calculator works. Suppose you're taking out a $300,000 mortgage in Ontario with a 5-year amortization period and an interest rate of 5%.

Enter $300,000 as the loan amount.
Enter 5% as the interest rate.
Select 5 years as the amortization period.
Click Calculate.

The calculator will show you that your monthly payment would be approximately $6,437.50. This includes $2,500 in principal and $3,937.50 in interest for the first month.

Note

Actual mortgage payments may vary slightly due to rounding and the way interest is calculated. This is a simplified estimate.

Frequently Asked Questions

What is the difference between fixed and variable rate mortgages?

A fixed-rate mortgage has an interest rate that stays the same for the entire term of the loan, while a variable-rate mortgage has an interest rate that can change over time. Fixed-rate mortgages provide more stability in your payments, while variable-rate mortgages may offer lower initial rates.

What is the difference between principal and interest payments?

Principal payments reduce the amount you owe on the loan, while interest payments cover the cost of borrowing the money. In the early years of a mortgage, most of your payment goes toward interest. Over time, as you pay down the principal, more of your payment goes toward reducing the loan balance.

What is an amortization schedule?

An amortization schedule is a detailed breakdown of your mortgage payments, showing how much of each payment goes toward principal and how much goes toward interest. It helps you understand how your loan balance decreases over time and how much interest you'll pay over the life of the loan.