GST Calculator

Calculate Goods & Services Tax Online

Calculation Type

Common GST Rates

Food items 0%
Books 0%
Medicine 5%
Restaurants 5%
Computers 12%
Mobile phones 12%
TVs 18%
Footwear 18%
Luxury cars 28%
Cigarettes 28%
GST Calculation Results
Total Amount
₹11,200
Original Amount
₹10,000
CGST (9%)
₹900
SGST (9%)
₹900
Total GST
₹1,800
Net Amount
₹10,000

Note: This GST calculator is designed for informational purposes only. GST rates vary based on product categories and state regulations. CGST (Central GST) and SGST (State GST) are each half of the total GST rate. Always consult with a tax professional for accurate tax calculations and compliance.

GST Formulas Explained

Learn how to calculate Goods and Services Tax (GST) using different methods

Exclusive of GST

When the amount does not include GST:

GST Amount = (Original Cost × GST Rate) / 100
Net Price = Original Cost + GST Amount
  • CGST = GST Amount / 2
  • SGST = GST Amount / 2
  • Total GST = CGST + SGST
  • Net Price = Original Cost + Total GST

Inclusive of GST

When the amount already includes GST:

GST Amount = Original Cost - [Original Cost × (100 / (100 + GST Rate))]
Net Price = Original Cost (which includes GST)
  • GST Amount = Original Cost × (GST Rate / (100 + GST Rate))
  • CGST = GST Amount / 2
  • SGST = GST Amount / 2
  • Base Price = Original Cost - GST Amount

CGST

Central GST

50% of GST

SGST

State GST

50% of GST

IGST

Integrated GST

For interstate

Practical Examples

Example 1: Exclusive GST

  • Product price: ₹10,000
  • GST rate: 18%
  • GST amount: 10,000 × 0.18 = ₹1,800
  • CGST: ₹900 (9%)
  • SGST: ₹900 (9%)
  • Net price: ₹11,800

Example 2: Inclusive GST

  • Product price: ₹11,800 (including GST)
  • GST rate: 18%
  • Base price: 11,800 / (1 + 0.18) = ₹10,000
  • GST amount: ₹1,800
  • CGST: ₹900
  • SGST: ₹900