GST Amount Calculator India — Find GST on Any Price

How to Use GST Calculator India

Enter the base amount, select the GST rate slab (5%, 12%, 18%, 28%), choose Exclusive (add GST to amount) or Inclusive (extract GST from total), and select whether it's an Intra-state (CGST + SGST) or Inter-state (IGST) transaction. Get instant breakup — no login, no install.

How GST Calculator Works — Formula

GST Exclusive: GST Amount = Base × Rate/100 · Total = Base + GST
GST Inclusive (Reverse): Base = Total ÷ (1 + Rate/100) · GST = Total − Base
CGST & SGST = GST Amount ÷ 2 each (for intra-state transactions).
Example: ₹10,000 base at 18% → GST = ₹1,800 · CGST = ₹900 · SGST = ₹900 · Total = ₹11,800.

CGST vs SGST vs IGST — What's the Difference?

CGST (Central GST) goes to Central Government. SGST (State GST) goes to State Government. Both are charged on intra-state transactions (seller and buyer in the same state), each at half the total GST rate. IGST (Integrated GST) is charged on inter-state transactions and goes entirely to the Central Government, which then distributes to the destination state.

Real-Life GST Examples India 2025

🛒 Grocery (Milk, fresh vegetables): 0% GST — exempt essentials.
💊 Medicines, life-saving drugs: 5% GST — reduced rate for healthcare.
📱 Mobile phones, computers: 12% GST — standard electronics rate.
🍕 Restaurant services, AC restaurants: 5% or 18% GST — varies by type.
🏠 Under-construction flats: 5% GST (affordable) or 12% (premium).
🚗 Luxury cars: 28% GST + 12–22% Cess — highest tax bracket.