GST Calculator
Add or remove GST
Total incl. GST
₹11,800
- Amount before GST
- ₹10,000
- GST (18%)
- ₹1,800
- CGST (9%)
- ₹900
- SGST (9%)
- ₹900
- IGST (inter-state)
- ₹1,800
- Total incl. GST
- ₹11,800
Estimates only. Actual figures may vary with your bank, fund or policy.
How it worksAdd: GST = amount × rate. Remove: base = amount ÷ (1 + rate). CGST and SGST are half each.
FAQs
How do I add GST to a price?
Multiply the price by the GST rate. For ₹1,000 at 18%, GST is ₹180 and the total is ₹1,180.
How do I remove GST from a total?
Divide the total by (1 + rate). For ₹1,180 including 18% GST, the base price is 1,180 ÷ 1.18 = ₹1,000.
What are CGST, SGST and IGST?
Within the same state, GST is split equally into CGST (central) and SGST (state). For sales to another state, the full amount is charged as IGST.