GST Calculator
Add or remove GST, with CGST/SGST split.
1,000
Net (excl. GST)
180
GST Amount
1,180
Gross (incl. GST)
90
CGST (9%)
90
SGST (9%)
Free online GST calculator. Add GST to a net amount or remove GST from a gross amount at any rate, with an optional CGST and SGST split for Indian GST. Instant and private.
How to use the GST Calculator
- 01Choose to add GST to a net amount or remove GST from a gross amount.
- 02Enter the amount and the GST rate.
- 03Optionally split the GST into equal CGST and SGST halves.
Frequently asked questions
What are CGST and SGST?
Under Indian GST, tax on an intra-state sale is split equally into Central GST (CGST) and State GST (SGST). An 18% GST becomes 9% CGST plus 9% SGST, which this calculator shows when the split is enabled.
How do I remove GST from an inclusive price?
Divide the gross amount by 1 plus the GST rate as a decimal; the difference is the GST. Use the Remove GST mode to do this automatically.