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GST Calculator

Calculate GST (Goods and Services Tax) for purchases and sales. Add or remove GST at 5%, 12%, 18%, or 28% rates. Perfect for Indian businesses and invoice calculations.

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GST Calculation

₹

Enter amount without GST

%

GST percentage applicable

Quick select:

Results

Total Amount
₹1,180.00
With GST
Original Amount
₹1,000.00
Without GST
GST Amount
₹180.00
at 18%

Breakdown

Base Amount:₹1,000.00
GST (18%):₹180.00
Total:₹1,180.00

Understanding GST Calculation

GST can be calculated in two ways: adding GST to a base amount, or extracting GST from a price that already includes it.

Adding GST

Formula: Total Amount = Base Amount + (Base Amount × GST Rate / 100)

Removing GST

Formula: Base Amount = Total Amount / (1 + GST Rate / 100)

GST Rates in India

  • 0%: Essential items (milk, bread, etc.)
  • 5%: Household necessities
  • 12%: Processed food, computers
  • 18%: Most goods and services
  • 28%: Luxury items, automobiles

Frequently Asked Questions

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