Ontario Home Loan Calculator

Calculate your Ontario home loan payments with this mortgage calculator. Estimate your monthly payments, total interest costs, and amortization schedule based on your loan amount, interest rate, and term.

How to Use This Calculator

To calculate your Ontario home loan payments:

Enter the loan amount (the total amount you're borrowing)
Select your amortization period (how long you'll pay back the loan)
Enter your interest rate (the annual percentage rate)
Click Calculate to see your monthly payment and other details

The calculator will show you:

Your estimated monthly payment
Total interest paid over the life of the loan
Total amount repaid (principal + interest)

Formula Used

The calculator uses the standard mortgage payment formula:

Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)

Where:

P = Principal loan amount
r = Monthly interest rate (annual rate ÷ 12 ÷ 100)
n = Number of payments (amortization period × 12)

This formula calculates the fixed monthly payment required to fully amortize the loan over the selected term.

Worked Example

Let's calculate a $300,000 loan with a 5-year term at 5% annual interest:

Principal (P) = $300,000
Annual interest rate = 5% → Monthly rate (r) = 5 ÷ 12 ÷ 100 = 0.0041667
Amortization period = 5 years → Number of payments (n) = 5 × 12 = 60

Plugging into the formula:

Monthly Payment = $300,000 × (0.0041667(1 + 0.0041667)^60) / ((1 + 0.0041667)^60 - 1)

= $300,000 × (0.0041667 × 1.0253) / (1.0253 - 1)

= $300,000 × (0.004252) / 0.0253

= $300,000 × 0.1681

= $50,430

So your monthly payment would be approximately $5,043.33.

Frequently Asked Questions

What is the difference between amortization and interest-only payments?

Amortization payments include both principal and interest, gradually reducing your loan balance. Interest-only payments only cover the interest portion, leaving the principal unchanged until the end of the term. Amortization is more common as it builds equity over time.

How does the interest rate affect my monthly payment?

A higher interest rate means you'll pay more in interest over the life of the loan, increasing your total repayment amount and monthly payment. A lower rate reduces these costs.

What is the difference between fixed and variable rates?

Fixed rates stay the same throughout the loan term, providing predictable payments. Variable rates fluctuate with market conditions, which can lead to lower initial payments but may increase later. Fixed rates are generally more stable.