GST Calculator Online — Inclusive & Exclusive Tax
Add or remove GST from any amount at the new 5%, 18% and 40% rates, or 3%, 12%, 28%.
FAQ
GST Calculator — frequently asked questions
How do I add or remove GST from an amount?
Choose whether your amount already includes GST, pick the rate and calculate. You get the base amount, the GST, and the CGST, SGST and IGST split. Example: ₹1,000 plus 18% GST is ₹1,180 (GST ₹180 = CGST ₹90 + SGST ₹90); if ₹1,180 already includes 18% GST, the base amount is ₹1,000.
What is the difference between CGST, SGST and IGST?
For sales within one state, GST is split equally into CGST and SGST. For sales between states the whole amount is charged as IGST.
Which GST rates are available?
The new 5%, 18% and 40% slabs, 3% for gold and silver, and the older 12% and 28% rates for reference. Rates change by government notification, so confirm the rate for your goods or service on the official GST portal or with your accountant.
Are my numbers uploaded or stored anywhere?
No. GST Calculator runs in your browser, so your numbers stay on your device and are never sent to our servers or saved anywhere.
Is GST Calculator really free? Do I need to sign up?
Yes, it is completely free. There is no account, signup, watermark or email to hand over; open the page and use it as often as you like.
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QUICK GUIDE
How to use GST Calculator
- Fill in the fields above.
- Click Calculate.
- See the result instantly below.
Privacy
This tool runs in your browser. No data is ever sent to a server, and there is no usage limit.