Free Mortgage &
Loan Calculator

Plan your deposit · Calculate repayments · Region-aware rates · 100% private

Calculating live
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Your Region:
Detecting location…
What are you buying
$
Avg AU property: 4–6% pa
%
Your savings today
Already saved
$
Target down payment
%
e.g. 20% avoids LMI
Your savings plan
$
How much you save each month
%
HISA / term deposit rate
Your savings result
You can buy by
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Savings pace vs price growth—
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Target today
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Target at buy date
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Current savings
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Gap to fill
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Interest earned
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Total contributed
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📈 Savings Trajectory
Your savings
Down payment target
💡 What if you kept saving instead of buying? After reaching your deposit target, if you continued saving $2,000/mo and investing at 5%, your savings would continue growing as shown by the blue line — reaching — over the projection period.
💰
Down payment from savings applied Loan amount adjusted. Clear ×
Repayment Calculator
$
Range: 10k–3M
%
yr
= 360 months
$
Monthly Repayment
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Total Repayment
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Total Interest
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Interest Saved
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Loan Paid Off
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interest
—Principal
—Interest
—Total Cost
Amortisation Schedule
Principal paid
Interest paid
Remaining balance
📥 Export to Excel Download your full loan summary, amortisation schedule and savings plan as a formatted spreadsheet.
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📰 Finance & Property News

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How to Calculate Your Mortgage Repayments

LoanLens calculates your monthly repayment using the standard amortisation formula instantly in your browser — no data is ever sent to a server.

  1. Select your region — your country is auto-detected and region defaults are applied automatically. Switch manually using the region buttons.
  2. Enter your loan amount — drag the slider or type directly. Supports loans from $10,000 up to $5 million depending on your region.
  3. Set your interest rate — use your lender's quoted rate. Results update instantly as you adjust.
  4. Choose your loan term — typically 25–30 years for home loans; 5–7 years for car and personal loans.
  5. Add extra repayments — see immediately how much interest you save and how many years you cut from your loan by paying more each month.
  6. Read the amortisation chart — green bars show principal repaid each year, blue shows interest, and the amber line tracks remaining balance. Hover any bar for exact figures.
  7. Use the Savings Planner — enter your savings goal and monthly contribution to see exactly when you can afford your deposit, accounting for price growth and compound interest.
  8. Export to Excel — download your full loan summary, amortisation schedule and savings projection as a formatted spreadsheet.

Frequently Asked Questions

How are mortgage repayments calculated?

Using the standard amortisation formula: M = P × r(1+r)ⁿ ÷ ((1+r)ⁿ – 1), where P is the principal, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments. This gives the fixed monthly payment that pays off the loan exactly over the term.

How much does paying extra each month save?

On a $600,000 mortgage at 6.2% over 30 years, adding $500 per month in extra repayments saves approximately $185,000 in interest and pays the loan off around 9 years early. Use the Extra Monthly Repayment slider to model your own scenario.

What is an amortisation schedule?

An amortisation schedule breaks every year of your loan into principal repaid and interest paid, along with the remaining balance. In the early years of a mortgage, the majority of each repayment goes toward interest. The amortisation chart visualises this shift year by year.

How long does it take to save a house deposit?

Use the Savings Planner above. Enter your target purchase price, current savings, monthly contribution, savings interest rate and expected price growth. The planner shows the exact month you'll reach your deposit goal — and warns you if price growth is outpacing your savings accumulation.

Is my financial data private?

Completely. All calculations happen locally in your browser. No loan amounts, interest rates or personal figures are ever sent to any server. LoanLens has no user accounts and no tracking of financial inputs. See our Privacy Policy for full details.

Which countries does LoanLens support?

LoanLens supports Australia, United States, United Kingdom, New Zealand, Canada, Europe (EUR) and Singapore — each with region-specific loan defaults, currency and a live finance news feed. Your country is detected automatically on page load.

Disclaimer: LoanLens is provided for informational and planning purposes only. Results are estimates and do not constitute financial advice. Always confirm rates with your lender. Edge4ward Pty Ltd does not hold an Australian Financial Services Licence (AFSL).

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Principal paid
Interest paid
Balance remaining
Your savings
Target needed
Gap