Real Estate Mortgage Calculator Canada

This real estate mortgage calculator helps Canadian homebuyers estimate their monthly mortgage payments, total interest costs, and amortization schedule. Simply enter your home price, down payment, interest rate, and loan term to get an accurate calculation.

How to Use This Calculator

Using this mortgage calculator is simple:

Enter the purchase price of the home you're interested in.
Input your down payment amount or percentage.
Provide the current interest rate (fixed or variable).
Select your preferred amortization period (typically 5, 10, 15, 20, or 25 years).
Click "Calculate" to see your estimated monthly payment and other details.

The calculator will display your monthly mortgage payment, total interest paid over the life of the loan, and a breakdown of your amortization schedule.

Mortgage Payment Formula

The monthly mortgage payment is calculated using the following formula:

M = P [i(1 + i)ⁿ] / [(1 + i)ⁿ - 1]

Where:

M = Monthly payment
P = Principal loan amount (Purchase price - Down payment)
i = Monthly interest rate (Annual rate / 12)
n = Number of payments (Amortization period × 12)

This formula accounts for the interest on the loan balance each month, creating a fixed payment that gradually reduces the principal over time.

Example Calculation

Let's look at an example to understand how the mortgage calculator works.

Example Scenario

Home price: $400,000
Down payment: 20% ($80,000)
Loan amount: $320,000
Interest rate: 5% (0.4167% monthly)
Amortization period: 25 years (300 months)

Using the formula:

M = $320,000 [0.004167(1 + 0.004167)³⁰⁰] / [(1 + 0.004167)³⁰⁰ - 1]

Calculating this gives a monthly payment of approximately $2,150.42.

Over 25 years, you would pay a total of $645,126, with $325,126 going toward interest.

Amortization Schedule

An amortization schedule shows how your mortgage balance changes over time, with each payment applying first to interest and then to the principal. Here's a sample table showing the first few payments from our example:

Payment #	Payment Amount	Interest Paid	Principal Paid	Remaining Balance
1	$2,150.42	$1,333.33	$817.09	$319,182.91
2	$2,150.42	$1,325.24	$825.18	$318,357.73
3	$2,150.42	$1,317.13	$833.29	$317,524.44
4	$2,150.42	$1,309.02	$841.40	$316,683.04
5	$2,150.42	$1,300.90	$849.52	$315,833.52

The calculator can generate a complete amortization schedule for your specific loan terms.

Frequently Asked Questions

What is the difference between fixed and variable mortgage rates?: A fixed rate mortgage has the same interest rate for the entire loan term, while a variable rate mortgage adjusts with market rates. Fixed rates are generally more predictable, while variable rates may offer lower initial rates but come with more risk.
How does a down payment affect my mortgage?: A larger down payment reduces your loan amount and monthly payments, but it also means you have less equity in your home. The optimal down payment depends on your financial situation and the current mortgage 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. Early in the loan term, most payments go toward interest, while later payments focus more on principal.
How does the amortization period affect my mortgage?: A longer amortization period means lower monthly payments but more total interest paid over the life of the loan. A shorter amortization period results in higher monthly payments but less total interest paid.
What are closing costs and how do they affect my mortgage?: Closing costs are fees and expenses associated with finalizing your mortgage, typically 2-5% of the home price. These costs are paid at closing and are separate from your monthly mortgage payments.