Free India GST Calculator

Instantly calculate GST inclusive and exclusive amounts. Accurate IGST, CGST, and SGST breakdowns for all tax slabs (3%, 5%, 12%, 18%, 28%).

Calculation Result

Net Amount0.00
CGST (9%)0.00
SGST (9%)0.00
Total Amount0.00

How to calculate GST in India?

Adding GST (Exclusive to Inclusive)

Formula: GST Amount = (Original Cost × GST %) / 100

Example: If a product costs ₹1000 and the GST rate is 18%, the GST amount is ₹180. The total price becomes ₹1180.

Removing GST (Inclusive to Exclusive)

Formula: GST Amount = Original Cost - (Original Cost × [100 / (100 + GST %)])

Example: If the total price is ₹1180 and includes 18% GST, the original cost before tax was ₹1000.

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