Embed a free GST calculator on your website

How to add the calculator

Choose a default GST rate, copy the embed code and paste it into the HTML of any page where you want the calculator to appear. In WordPress, use a Custom HTML block. In Wix, Squarespace, Blogger or Shopify, use their HTML or embed block.

The snippet adds a small frame that is 420 pixels wide at most and adapts to narrower screens. It also adds a one-line credit link under the calculator. Please keep that link: it is how we keep this tool free.

What your visitors get

A fast GST calculator that adds GST to a base amount or removes GST from a GST-inclusive price, splits the tax into CGST and SGST or IGST, and supports every GST slab. It works on phones and desktops.

Privacy and performance

The calculator runs entirely in the visitor's browser. It does not use advertising, does not set tracking cookies and does not send the amounts anyone types to a server. The frame loads lazily, so it does not slow down your page until a visitor scrolls to it.

Good to know

The widget is a convenience calculator, not tax advice. Rates should be confirmed against the official CBIC schedule before they are used on an invoice. You are welcome to use it on commercial and professional websites.

Frequently asked questions

Is the embeddable GST calculator free?

Yes. It is free for any website, including commercial and professional ones, with no registration.

Does the widget show ads or track my visitors?

No. It shows no ads and sets no tracking cookies. The only extra content is a small credit link to ARTHACE.

Can I change the default GST rate?

Yes. Pick a rate above and the embed code adds it for you. Visitors can still change the rate inside the calculator.

Will it work on my website builder?

It works anywhere you can paste HTML, including WordPress, Wix, Squarespace, Blogger and plain HTML pages.