THEBOOLEAN / TOOLS / GST
Free calculator
GST calculator
By TheBoolean Studio · Reviewed 2026-10 · Free forever
Enter an amount, pick a slab and whether the price includes GST. Base, GST, CGST/SGST split and total update live.
₹11,800total
Base amount₹10,000
GST (18%)₹1,800
CGST + SGST₹900 + ₹900
THEBOOLEAN® — theboolean.in/tools
GST calculation
Generated 2026-10-04
| Amount | ₹10,000 |
| Slab | 18% |
| Base | ₹10,000 |
| GST | ₹1,800 |
| CGST + SGST | ₹900 + ₹900 |
| Total | ₹11,800 |
Figures are computed from publicly available formulas and public-domain data. TheBoolean does not hold, validate or warrant any third-party data, rates or outcomes. Estimates only — not financial, tax or legal advice. Confirm with a qualified professional.
Questions
What is the CGST/SGST split?
Intra-state GST splits equally: 18% GST = 9% CGST + 9% SGST. Inter-state uses IGST at the full rate instead.
How do I remove GST from an inclusive price?
Base = price ÷ (1 + rate ÷ 100). A ₹11,800 bill at 18% means ₹10,000 base + ₹1,800 GST.
Is this compliance advice?
No — arithmetic only. Slabs, exemptions and filing need a CA.