Mortgage Repayment Calculator

Mortgage Repayment Calculator: Plan Your Loan with Confidence

This calculator is built to help you break down the key numbers behind your potential home loan. It offers real-time estimates for:

  • What your ongoing repayments will look like
  • The total interest paid over the life of the loan
  • How quickly your loan balance reduces over time

Simply enter the loan amount you’re considering, the length of the loan, your interest rate, and how often you’d like to make repayments. The calculator assumes standard principal and interest repayments.

Why Use a Repayment Calculator in Australia?

If you're looking to buy property or refinance, this tool gives you quick insight into how much your repayments might be — before speaking with a lender. Whether you're entering the market in Brisbane or upgrading in Sydney, it helps you map out your budget clearly and compare different loan options.

Designed for Australian Borrowers

This calculator is built specifically for the Australian market, using locally relevant loan terms and repayment structures. You can choose from monthly, fortnightly, or weekly repayment options to suit your income and cash flow.

Real-Time Results, Smarter Decisions

Adjusting the numbers instantly shows how your repayments change — so you can try different scenarios and find what works best. It’s a simple way to visualise the long-term impact of interest rates, loan terms, or even a slightly larger deposit.

How Reliable Is This Tool?

Our calculator uses common repayment formulas based on how most Australian home loans are structured. It’s a useful guide to help you get started, but remember: every lender is different, and this tool doesn’t replace personalised financial advice.

Stay Ahead on Your Property Journey

Whether you're a first-home buyer, upgrading, or investing, having access to a solid repayment calculator puts you in control. It helps you prepare, negotiate with more confidence, and avoid surprises down the track.

How is this calculated?

This calculator helps estimate your potential mortgage repayments based on the loan amount, loan term, and interest rate you provide.

Important information:

  • The calculator’s results are for general guidance only and do not take into account your personal financial situation. It’s essential to consider whether the estimate fits your circumstances. For advice tailored to your needs, please consult with one of our home loan specialists or a qualified financial advisor.
  • These results do not represent an official loan offer, pre-approval, or pre-qualification.
  • Interest rates used in the calculation reflect current market conditions as of the calculation date but may change over time.
  • The estimate is based on the input values you provide and excludes any lender fees or additional costs. The final loan amount and repayments may differ once a full application is submitted and reviewed according to lender requirements. This information is accurate as of the date of calculation and may be updated without notice.
  • Any images or content shown on the John Weeks Finance website featuring financial product details, including interest rates, are for demonstration purposes only. John Weeks Finance does not endorse or recommend any particular credit products. Nothing on this site should be construed as credit advice.
  • If you choose to work with a John Weeks Finance home loan expert, you may receive tailored credit assistance, including the relevant information and documentation related to your application.
  • Your use of this website and its services is subject to our Terms & Conditions and Privacy Policy.
Mortgage Calculator with 3-Line Chart
30 years
0 5 10 15 20 25 30
You would be repaying: $0 monthly
Total interest paid: $0
Total principal & interest paid: $0

Loan Balance & Payments Over Time

Compare rates across multiple lenders

The images and content displayed on the johnweeksfinance.com website, including any financial product details such as interest rates, are provided for demonstration purposes only. The John Weeks Finance website does not endorse or recommend any specific credit products, and nothing on this site should be interpreted as credit advice. If you choose to engage with a John Weeks Finance mortgage broker, credit assistance may be provided at that time, and you will receive all relevant information and documentation pertaining to your engagement. Access to and use of this site, and any services offered, are subject to our Terms & Conditions and Privacy Policy.

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