GST Calculator

Add GST to a price or remove it from a total in one tap — with the CGST/SGST split for every Indian GST slab.

GST amount: ₹180

CGST (9.0%): ₹90 · SGST (9.0%): ₹90

Net (excl. GST): ₹1,000 · Gross (incl. GST): ₹1,180

Calculate GST the easy way

Goods and Services Tax (GST) applies to most goods and services in India at slabs of 3%, 5%, 12%, 18% or 28%. Whether you are a shopkeeper pricing a product, a freelancer raising an invoice, or a buyer checking a bill, this calculator handles both directions — adding GST to a base price, or extracting the GST already included in a total.

For sales within the same state, GST is shared equally as CGST (central) and SGST (state), which the calculator shows automatically. It runs in your browser, so your figures stay private.

Frequently asked questions

How do I add GST to a price?
Choose ‘Add GST’, enter the base amount and the GST rate. The calculator shows the GST amount and the final price including GST, plus the CGST and SGST split.
How do I remove GST from a total?
Choose ‘Remove GST’ and enter the GST-inclusive amount. The calculator works backwards to show the base price and the GST that was included.
What are the GST slabs in India?
The main GST rates are 3%, 5%, 12%, 18% and 28%, depending on the goods or service. For intra-state sales, GST is split equally into CGST and SGST.
Is it free?
Yes — free, no sign-up, and it runs entirely in your browser.

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