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GST Calculator

Add or remove GST from any amount in seconds. Pick the rate, enter your amount, get the breakdown.

Private - runs in your browser No signup required Free forever

How to use GST Calculator

  1. Choose Add GST or Remove GST.
  2. Enter the amount.
  3. Pick the GST rate.
  4. See the result.

Features

  • Common GST slabs (5/12/18/28%)
  • Custom rate support
  • Inclusive / exclusive calculation

Why use it

  • Quick invoicing
  • Useful for shoppers
  • Works without internet (after first load)

Frequently asked questions

Which rates does this support?

Standard GST slabs (5%, 12%, 18%, 28%) and any custom rate you enter.