GST Calculator
Quickly add GST to a net amount or extract GST from a gross amount.
About this calculator
GST in India applies at 5%, 12%, 18% or 28% depending on the goods or service. This tool both adds and reverses GST.
Use 'remove' mode to find the base price hidden inside a GST-inclusive amount.
All calculations happen in your browser — your numbers are never sent anywhere. Results are estimates for guidance only, not financial advice.
Frequently asked questions
What are the GST slabs?
The main GST rates are 5%, 12%, 18% and 28%.
How do I remove GST from a price?
Switch to 'Remove GST' mode and enter the gross (inclusive) amount.