Calculator Mortgage Ontario

This Ontario mortgage calculator helps you estimate monthly payments, total interest costs, and amortization schedule for home loans in Ontario. Simply enter your loan details and get instant results.

How to Use This Calculator

To use the Ontario mortgage calculator:

Enter the principal amount (loan amount)
Select the interest rate (fixed or variable)
Choose the amortization period (term length)
Select the payment frequency (monthly, bi-weekly, etc.)
Click "Calculate" to see your results

The calculator will display your monthly payment, total interest paid, and amortization schedule. You can also view a chart showing the breakdown of principal and interest payments over time.

Formula Used

The calculator uses the standard 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 × payment frequency per year)

For bi-weekly payments, the formula adjusts the payment frequency accordingly.

Worked Example

Let's calculate a mortgage with these details:

Principal: $300,000
Interest rate: 5% (0.05)
Amortization: 25 years
Payment frequency: Monthly

Using the formula:

Monthly interest rate = 0.05 / 12 = 0.0041667

Number of payments = 25 × 12 = 300

Monthly payment = $300,000 [0.0041667(1 + 0.0041667)³⁰⁰] / [(1 + 0.0041667)³⁰⁰ - 1]

Monthly payment ≈ $1,706.56

Total interest paid = ($1,706.56 × 300) - $300,000 = $181,968

This example shows that with a $300,000 loan at 5% interest over 25 years, you would pay approximately $1,706.56 per month with $181,968 in total interest.

Frequently Asked Questions

What is the difference between fixed and variable rates?

Fixed rates remain the same throughout the loan term, providing predictable payments. Variable rates fluctuate with market interest rates, which can lead to lower initial payments but may increase over time.

How does amortization affect my mortgage?

The amortization period is the length of time it takes to pay off your mortgage. Shorter terms mean higher monthly payments but less total interest paid, while longer terms mean lower monthly payments but more total interest.

What is the difference between monthly and bi-weekly payments?

Bi-weekly payments are made every two weeks (26 payments per year) instead of monthly (12 payments per year). This can reduce the total interest paid over the life of the loan compared to monthly payments.