18% GST Calculator
Calculate 18% GST on any amount. Add GST to a price or remove GST from a GST-inclusive amount. See CGST and SGST breakdown.
18% GST is the most common rate applied to services in India — including IT services, restaurants, financial services, and most professional services. This calculator helps you quickly add or remove 18% GST from any amount.
Tips for 18% GST
18% GST applies to most services: IT, restaurants (non-AC), financial services, telecom
When removing GST: divide by 1.18, not subtract 18% — a common mistake
For Indian businesses: 18% GST = 9% CGST + 9% SGST (intra-state) or 18% IGST (inter-state)
Frequently Asked Questions
How do I calculate 18% GST?
Data sources: Government tax rate schedules
For informational purposes only. Not financial, medical, or legal advice. Always consult a qualified professional for decisions affecting your finances or health.