MarginCalculator.org

Professional GST Calculator

Calculate GST amounts accurately with our advanced calculator. Perfect for businesses and financial planning.

Start Calculating

Key Features

Multiple GST Rates

Support for all standard GST rates: 5%, 12%, 18%, and 28%.

Dual Calculation Modes

Add GST to base amount or extract GST from total amount.

Instant Results

Get base amount, GST amount, and total instantly.

Choose whether to add GST to amount or extract GST from amount

Enter the amount for GST calculation

Select applicable GST rate

How to Use the GST Calculator

Add GST (Exclusive)

  1. Select "Add GST (Exclusive)" mode
  2. Enter the base amount (pre-GST)
  3. Choose the applicable GST rate
  4. Click Calculate to see GST amount and final price

Extract GST (Inclusive)

  1. Select "Extract GST (Inclusive)" mode
  2. Enter the total amount (including GST)
  3. Choose the applicable GST rate
  4. Click Calculate to see base amount and GST amount

GST Rates in India

5% GST Rate

  • Packaged food items
  • Transport services
  • Small restaurants

12% GST Rate

  • Business class air tickets
  • Frozen meat products
  • Hotel rooms (₹1000-2500)

18% GST Rate

  • Most services
  • Computer software
  • Hotel rooms (₹2500-7500)

28% GST Rate

  • Luxury items
  • High-end cars
  • Premium hotel rooms (>₹7500)