Free calculator widgets for your website

Writing about CPF, HDB or retirement in Singapore? Add a working calculator to your post so readers can run their own numbers. The widgets are free, carry no ads, and update automatically when CPF, HDB or IRAS rules change. All we ask is that you keep the credit link under the widget.

Calculator

See your salary after CPF, your employer’s CPF, and estimated income tax

Embed code

Paste this into an HTML block on your page. The widget resizes to fit its content.

<iframe src="https://wealthkaki.com/embed/take-home-pay" title="Take-Home Pay &amp; CPF Contribution Calculator by WealthKaki" width="100%" height="1100" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font-size:13px;margin-top:4px">Take-Home Pay &amp; CPF Contribution Calculator by <a href="https://wealthkaki.com/calculators/take-home-pay?utm_source=embed&utm_medium=widget&utm_campaign=take-home-pay&utm_content=credit">WealthKaki</a></p>
<script>window.addEventListener("message",function(e){if(e.origin!=="https://wealthkaki.com"||!e.data||e.data.type!=="wealthkaki:height")return;document.querySelectorAll('iframe[src^="https://wealthkaki.com/embed/"]').forEach(function(f){if(f.contentWindow===e.source)f.style.height=e.data.height+"px"})})</script>

Preview

Questions

Does the widget collect my readers' data?

Calculations run in the reader's browser. We record anonymous usage, such as which calculator was used and on which site, to improve the tools. We never sell what readers enter.

Can I change the default numbers?

Yes. Add the calculator's share parameters to the iframe URL. The easiest way is to set the numbers you want on the full calculator, press share, and copy the part of the link after the question mark onto the end of the widget's src.

Is it financial advice?

No. Like the rest of WealthKaki, the widgets are educational estimates, and each one says so. They are not a substitute for a licensed financial adviser.