GST Calculator
Add or remove GST from any amount. Covers all Indian GST slabs.
GST slabs — what rate applies to what
0%: raw food, education, healthcare, basic services. 5%: essential items, economy travel, small restaurants. 12%: processed food, business travel, mobile phones. 18%: most services — IT, telecom, AC restaurants, financial services, most manufactured goods. 28%: luxury items — cars (plus cess), tobacco, aerated drinks, premium electronics.
CGST, SGST and IGST explained
Within the same state: GST splits equally into CGST (Central) + SGST (State). Example: 18% GST = 9% CGST + 9% SGST. Between states: IGST at the full rate applies — collected by Centre, then distributed to destination state. Our calculator shows CGST/SGST for intra-state and IGST for inter-state transactions.
How to reverse-calculate the base price
Base price = Inclusive price ÷ (1 + GST rate). Example: product costs ₹1,416 inclusive of 18% GST. Base price = ₹1,416 ÷ 1.18 = ₹1,200. GST amount = ₹216 (₹108 CGST + ₹108 SGST). Use the "Remove GST" option above to instantly extract any GST-inclusive price.