For intra-state, 18 splits as 9 and 9. This box shows the full GST first.

Which rate do I pick?

Look at the invoice HSN line. Dont guess from memory if money is big.

GST Calculator

Shop bill shows a number and you want the GST hiding inside, or you want to add 18 percent on a quote. Same box, two directions.

Result breakdown

Original amount: ₹1,000.00
GST inside: ₹180.00
Inclusive total: ₹1,180.00
CGST + SGST split: ₹90.00 each

This is an estimate, not an official figure.

How to use

Type the amount you have.
Pick the GST rate on that item.
Choose add GST or extract GST from an inclusive price.

One example

Bill is ₹1,180 inclusive at 18%. Original is ₹1,000 and GST is ₹180. That is the usual extract case.

Common mistakes

Using 18 on a 5 percent grocery line.
Extracting GST from a price that never had GST.
Forgetting discount was applied before GST on some invoices.

FAQs

CGST and SGST?: For intra-state, 18 splits as 9 and 9. This box shows the full GST first.
Which rate do I pick?: Look at the invoice HSN line. Dont guess from memory if money is big.
Can I do 28 percent?: Yes, pick 28 in the rate list.
Is this a GST return?: No. Just a number split.

Related tools

This is an estimate, not an official figure. CalcInHand is not a bank, Income Tax, GST or electricity board tool. Confirm important numbers on the official portal.