GST Calculator
Add or remove GST and get CGST, SGST, and IGST split instantly.
How to Use
- 1
Enter the base amount
Type the price of goods or services before GST.
- 2
Select the GST rate
Choose the applicable GST slab — 5%, 12%, 18%, or 28%.
- 3
View GST breakdown
See CGST and SGST (for intra-state) or IGST (for inter-state) amounts and the total price with GST.
- 4
Or reverse calculate
Enter a GST-inclusive price to extract the base amount and tax component.
Frequently Asked Questions
Enter the amount and select the GST rate (5%, 12%, 18%, or 28%). The tool shows the GST amount, CGST/SGST split, and the final inclusive or exclusive price instantly.
For transactions within a state, GST is split equally into CGST (Central) and SGST (State). For inter-state transactions, IGST (Integrated GST) is charged at the full rate.
Select "GST Inclusive" mode, enter the total amount, and choose the GST rate. The calculator will reverse-calculate the base price and the GST component.