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GST Calculator

Calculate GST - Inclusive, Exclusive & Reverse

GST Calculation Types

  • GST Exclusive: Add GST to base amount (₹100 + 18% GST = ₹118)
  • GST Inclusive: Extract GST from total (₹118 includes ₹18 GST)
  • Reverse GST: Calculate base from GST amount (GST ₹18 = Base ₹100)

GST Details

₹

Note: For intra-state supply, GST is divided into CGST + SGST. For inter-state supply, only IGST applies.

Calculation Results

Common GST Rates in India

0%

Essential items (milk, bread, vegetables, books, newspapers)

5%

Mass consumption goods (sugar, tea, coffee, edible oil, coal)

12%

Processed food, mobile phones, business class air tickets

18%

Services, electronics, branded garments, toiletries

28%

Luxury items (cars, cigarettes, aerated drinks, premium goods)

0.25%

Rough precious and semi-precious stones

3%

Gold, silver, and diamonds

Custom

Enter your own rate for specific items

Example Calculations

GST Exclusive

Base Amount:₹10,000
GST @ 18%:+₹1,800
Total:₹11,800

GST Inclusive

Total Amount:₹11,800
GST @ 18%:-₹1,800
Base Amount:₹10,000

Reverse GST

GST Amount:₹1,800
Rate @ 18%:Base ÷ 18%
Base Amount:₹10,000

Frequently Asked Questions

GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services in India. It's calculated as a percentage of the taxable value. For example, if the base amount is Rs 10,000 and GST rate is 18%, the GST amount is Rs 1,800.

CGST (Central GST) and SGST (State GST) are levied on intra-state supplies, each being half of the total GST rate. IGST (Integrated GST) is levied on inter-state supplies and equals the full GST rate.

GST rates in India are 0%, 0.25%, 3%, 5%, 12%, 18%, and 28%. Essential items have 0% GST, while luxury items attract 28% GST. Most services fall under 18% GST.

To extract GST from a total amount, use this formula: Base Amount = Total Amount × 100 ÷ (100 + GST Rate). For example, if total is Rs 11,800 at 18% GST, base = 11800 × 100 ÷ 118 = Rs 10,000.