Add GST to a base value
For a ₹10,000 taxable value at an assumed 18% rate: GST = ₹10,000 × 18 ÷ 100 = ₹1,800. Total = ₹11,800.
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GST Calculator
Calculate inclusive or exclusive GST instantly.
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Instantly calculate exclusive or inclusive GST amounts
Choose IGST for inter-state supply, or CGST + SGST for intra-state supply.
Calculation Summary
Base Amount₹0.00
CGST (9%)₹0.00
SGST (9%)₹0.00
Total Amount₹0.00
How to calculate inclusive and exclusive GST
The rate below is an arithmetic example, not a rate recommendation for any product or service. Confirm the applicable rate and tax treatment separately.
Extract GST from a total
For a ₹11,800 GST-inclusive total at an assumed 18%: base = ₹11,800 × 100 ÷ 118 = ₹10,000. GST = ₹1,800.
Understand the split
Where equal CGST and SGST apply, the example ₹1,800 total splits into ₹900 each. IGST mode displays ₹1,800 as one tax amount. Select treatment based on the transaction facts.
The tool performs a simple percentage calculation. It does not determine classification, place of supply, exemptions, cess, reverse charge or input-credit eligibility. Display rounding may differ from invoice or return-level totals.
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