Online GST Calculator
Add or remove GST at any rate with a CGST/SGST split.
Enter an amount, pick a rate and see the tax and net value side by side. Inclusive mode strips GST out of a final price, exclusive mode adds it on top, and the breakdown shows how the tax splits between CGST and SGST for a local sale or lands as IGST for an inter-state one.
Amount includes GST
Switch on to extract GST from a gross amount.
Inter-state supply (IGST)
Off splits the tax into CGST and SGST.
Base amount
₹ 10,000.00
CGST (9.00%)
₹ 900.00
SGST (9.00%)
₹ 900.00
Total
₹ 11,800.00
How to use GST Calculator
- 1
Enter the amount.
- 2
Pick the GST rate and whether the amount is inclusive.
- 3
Read the breakdown.
About this tool
GST Calculator is part of the MyShopBuy business tools collection — a free suite built for people who need a reliable result in seconds, not another signup form. Add or remove GST at any rate with a CGST/SGST split. Processing happens entirely inside your browser using modern web APIs, so nothing is uploaded, queued or stored. That makes it fast enough for daily use and safe enough for sensitive documents.
There are no watermarks, no file-count limits and no paywalls. If you use it often, create a free account to keep favourites and history in sync across your devices.