Free Calculator Widgets for Your Website
Add professional financial calculators to your website with a single line of code. Free forever, no sign-up required, mobile-responsive.
GST Calculator Widget
Add or remove 10% GST. Perfect for small business websites, accounting blogs, and bookkeeper sites.
AVAILABLE NOW
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<iframe src="https://decisionlab.com.au/embed/gst-calculator/" width="100%" height="420" frameborder="0" style="max-width:430px;border-radius:12px;border:1px solid #e0e0e0"></iframe>
Paste this code anywhere in your HTML. The widget is responsive, light-theme, and loads fast. No JavaScript dependencies. Links back to DecisionLab for full calculator access.
More Widgets Available
Stamp Duty Calculator
All 8 states · First home buyer toggle
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<iframe src="https://decisionlab.com.au/embed/stamp-duty-calculator/" width="100%" height="520" frameborder="0" style="max-width:450px;border-radius:12px;border:1px solid #e0e0e0"></iframe>
Mortgage Repayment Calculator
Weekly/fortnightly/monthly · Rate comparison
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<iframe src="https://decisionlab.com.au/embed/mortgage-calculator/" width="100%" height="500" frameborder="0" style="max-width:450px;border-radius:12px;border:1px solid #e0e0e0"></iframe>
Take-Home Pay Calculator
FY 2025–26 tax rates · Medicare · Super
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<iframe src="https://decisionlab.com.au/embed/income-tax-calculator/" width="100%" height="480" frameborder="0" style="max-width:450px;border-radius:12px;border:1px solid #e0e0e0"></iframe>
Loan Repayment Calculator
Car · Personal · Boat presets
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<iframe src="https://decisionlab.com.au/embed/loan-calculator/" width="100%" height="520" frameborder="0" style="max-width:450px;border-radius:12px;border:1px solid #e0e0e0"></iframe>
Want Custom Branded Widgets?
We build white-label calculator widgets with your branding for mortgage brokers, financial advisers, and accounting firms.
partnerships@decisionlab.com.au