GST Calculator

Free GST calculator for India, Australia, Canada, and Singapore. Calculate GST inclusive and exclusive prices with common tax rates.

How to Calculate GST

  1. 1 Enter the amount you want to calculate GST for
  2. 2 Select your country or region for the appropriate tax rate
  3. 3 Choose the GST rate percentage applicable to your goods or services
  4. 4 Select whether to add GST or remove (extract) GST from the amount
  5. 5 Click Calculate to see the GST amount and total

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Last updated: January 15, 2026 · v2.1