GST Calculator

Add GST to a base price or extract GST from a total, at standard Indian rates — free and instant.

About the GST Calculator tool

GST Calculator handles Goods and Services Tax the way Indian businesses need it. Add GST to a base price to find the final selling amount, or remove GST from a total to see the pre-tax value. It supports the standard 5, 12, 18, and 28 percent slabs and even splits the tax into CGST and SGST. The GST Calculator works instantly in your browser.

How to use the GST Calculator

  1. Enter the amount to work with.
  2. Choose the GST rate slab.
  3. Pick Add GST or Remove GST.
  4. Click Calculate GST to see net, GST, and total.

Features

  • Add or remove GST in one click.
  • Supports all standard Indian GST rates.
  • Splits tax into CGST and SGST.
  • Instant and private in your browser.
  • Free with no sign-up.

Your privacy

The GST Calculator runs entirely inside your web browser. Your files and text are never uploaded to any server, so your data stays private on your own device — just like the workflow trusted on sites such as iLovePDF and Sejda, but with nothing leaving your computer.

Frequently asked questions

What is the difference between add and remove GST?

Add GST treats your amount as pre-tax; remove GST treats it as a tax-inclusive total and works backwards.

What are CGST and SGST?

For intra-state sales the GST is split equally into Central and State GST, shown here for you.

Is my data saved?

No, the GST Calculator keeps everything on your device.

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