Calculators & Tools
Free planning tools for your new build — no sign-up, nothing leaves your device.
Three tools cover the questions every new-build buyer asks first: what will the loan cost, how long until my deposit is ready, and what will the home itself cost to build. They run entirely in your browser using standard formulas and indicative 2026 ranges — use them to set your budget, then confirm the numbers with your lender, builder or state revenue office.
When to use each tool
The deposit savings planner turns your target price, current savings and monthly capacity into a date. If a 5% First Home Guarantee deposit puts your timeline inside a year, the planner shows it.
The repayment calculator shows monthly and fortnightly figures plus a +1% stress test. If the stressed repayment strains your budget, adjust the loan amount before you shop — not after you fall in love with a design.
The build cost estimator converts floor area into an indicative construction range for your state and finish level. Take that range into builder tenders and hold every quote against it.
Frequently asked questions
- Are these calculators financial advice?
- No. They are indicative planning tools using standard formulas and published indicative cost ranges. Figures like interest rates, construction costs and scheme rules change — confirm all numbers with your lender, builder or state revenue office before making decisions.
- Which calculator should I use first?
- Most buyers start with the deposit savings planner to set a timeline, then the repayment calculator to test serviceability, then the build cost estimator once they are comparing builders.
- Do the calculators work on mobile?
- Yes — all calculators are plain HTML and JavaScript with no login and no data sent anywhere. Nothing you type leaves your device.
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