🧮 CalcHub

Home › GST Calculator

GST Calculator

Add GST to a price, or work out the price before GST from a GST-inclusive total. The CGST and SGST split is included for sales within one state.

GST rates in India

GST is charged at slabs such as 0%, 5%, 12%, 18% and 28%, depending on the goods or services. Most everyday items fall into one of these slabs, and the rate for a product can be changed by the GST Council.

Adding and removing GST

To add GST to a price, use GST = price × rate ÷ 100. To find the price before GST from a GST-inclusive total, use price = total × 100 ÷ (100 + rate). For a sale within one state, the GST is split equally into CGST (central) and SGST (state). For a sale between states, the full amount is charged as IGST.

Frequently asked questions

What is the difference between CGST, SGST and IGST?

CGST and SGST are each half of the GST on sales within the same state. IGST is the full GST on sales between states. The total tax is the same either way.

Are GST rates the same for every product?

No. Rates depend on the product or service and can change after GST Council decisions. Check the official GST portal for the current rate before you file.