GST Calculator – How to Calculate GST on an Amount?

To add GST: GST amount = base price × rate ÷ 100; total = base price + GST. To remove GST from a GST-inclusive price: base price = inclusive price ÷ (1 + rate/100). GST Calculator does both instantly and splits the amount into CGST/SGST or IGST.

Worked example

GST on ₹12,500 at 18%: GST amount = ₹2,250, total = ₹14,750.

Removing 18% GST from a ₹12,500 inclusive price: base price = 12,500 ÷ 1.18 = ₹10,593.22, GST amount = ₹1,906.78.

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How do I calculate GST on an amount?

GST amount = base price × GST rate ÷ 100. Total price = base price + GST amount. For ₹12,500 at 18%, GST is ₹2,250 and the total is ₹14,750.

How do I remove GST from an inclusive price?

Divide the inclusive price by (1 + rate/100). For a ₹12,500 price inclusive of 18% GST, the base price is 12,500 ÷ 1.18 = ₹10,593.22, with ₹1,906.78 as the GST component.

What are the GST rates in India?

The standard GST slabs in India are 0.25%, 3%, 5%, 12%, 18% and 28%, depending on the category of goods or services.

What is the difference between CGST, SGST and IGST?

CGST (Central GST) and SGST (State GST) are each charged at half the GST rate on sales within the same state. IGST (Integrated GST) is charged at the full rate on sales between different states.

What is the GST on ₹12,500 at 18%?

GST on ₹12,500 at 18% is ₹2,250, making the total ₹14,750.

What is the reverse GST calculation formula?

To find the base amount from a GST-inclusive price: base = inclusive price ÷ (1 + rate/100). The GST amount is then inclusive price minus base.

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