GST Calculator India

Add GST to a amount or remove GST from a GST-inclusive amount. Choose rate and mode. All calculations in your browser.

Input
Result
Original amount—
GST amount—
Total / Net—

CGST and SGST are half of total GST each (if intra-state).

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About the GST Calculator

This GST calculator helps you add GST to a base amount (exclusive) or reverse-calculate the net amount and GST from a total (inclusive). Rates 5%, 12%, 18%, and 28% match common India GST slabs. For intra-state supply, GST is split equally as CGST and SGST. Calculations run in your browser; no data is sent to any server.

Formulas

  • Exclusive: GST = Amount × (Rate/100). Total = Amount + GST.
  • Inclusive: Net = Total ÷ (1 + Rate/100). GST = Total − Net.