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How to Use LoanLens

A step-by-step guide to getting the most out of the free LoanLens mortgage and loan calculator.

Part 1 โ€” Calculate Your Repayments

  1. 1
    Select your region
    LoanLens auto-detects your country and pre-loads local defaults, currency, and typical interest rates. Click any region pill at the top of the calculator to switch manually (AU, US, UK, NZ, CA, EU, SG).
  2. 2
    Choose your loan type
    Select Mortgage, Personal Loan, or Car Loan from the tabs. Each pre-sets a sensible term and rate for your region โ€” you can override any of these.
  3. 3
    Set your loan amount
    Drag the Loan Amount slider or click and type a value directly. Ranges go from small personal loans up to $5M for large mortgages. The displayed currency will match your selected region.
  4. 4
    Enter the interest rate
    Use your lender's quoted rate, or reference the current regional rates shown in the sidebar panel. Rates are indicative โ€” always confirm with your lender.
  5. 5
    Adjust the loan term
    Standard mortgages are typically 25โ€“30 years; personal loans 3โ€“7 years; car loans 3โ€“5 years. Slide to your desired term and watch repayments update instantly.
  6. 6
    Add extra repayments (optional)
    Slide the Extra Monthly Repayment slider to see how much you'd save by paying more each month. The panel will instantly show total interest saved and years cut from your loan.

Part 2 โ€” Read the Amortisation Chart

  1. 7
    Understand the bars
    Green bars = principal repaid each year. Blue bars = interest paid each year. Notice how interest dominates in the early years, then shifts. The amber line tracks your remaining loan balance over time.
  2. 8
    Hover for exact figures
    Hover over any bar in the chart to see the exact principal, interest, and balance for that year in a tooltip.
  3. 9
    Switch to Table view
    Click the ๐Ÿ“‹ Table button to switch from the chart to a scrollable year-by-year breakdown. You'll see opening balance, principal paid, interest paid, and closing balance for every year.
  4. 10
    Export to Excel
    Click ๐Ÿ“Š Export to download your full amortisation schedule as an Excel (.xlsx) file โ€” useful for sharing with a financial adviser or keeping your own records.

Part 3 โ€” Plan Your Deposit (Savings Planner)

  1. 11
    Switch to the Savings Planner tab
    Click the Savings Planner tab next to the calculator to open the deposit goal planner.
  2. 12
    Enter your current savings
    How much do you have saved right now toward your deposit?
  3. 13
    Set monthly savings amount
    How much can you realistically save each month? LoanLens will project when your savings will hit your target.
  4. 14
    Enter your target property price
    Set the property price you're aiming for and your required deposit percentage (typically 10โ€“20%).
  5. 15
    Add property price growth (optional)
    Enter an expected annual property price growth rate to see a more realistic moving target โ€” your deposit goal grows as property prices rise.

๐Ÿ’ก Pro Tips

Compare scenarios: Run the calculator twice โ€” once with your current rate and once with a slightly lower rate (e.g. after negotiating with your lender). The interest savings over 25 years can be eye-opening.

Extra repayments: Even $100โ€“$200 extra per month on a typical mortgage can reduce your loan term by 3โ€“5 years and save tens of thousands in interest.

Use real rates: Check your region's current rate panel or visit your lender's website for the most accurate rate to plug in.