Online GST Calculator

Add GST to a base amount or remove GST from an inclusive price. Get the GST amount with CGST + SGST split for the 5%, 12%, 18% and 28% slabs instantly.

GST Formula

Add GST (exclusive): GST = Amount × rate ÷ 100, total = amount + GST.
Remove GST (inclusive): Net = Amount × 100 ÷ (100 + rate), GST = amount − net.
For intra-state supply the GST splits equally: CGST = SGST = GST ÷ 2.