Utilquip

GST Calculator

Calculate GST-inclusive or GST-exclusive prices instantly. Enter an amount, pick a rate, and see base value, GST, CGST/SGST split, and total. Runs entirely in your browser.

Processed locally in your browser
Last reviewed
My saved scenarios· Stored only on this device
Calculation basis
Last reviewed:
What we verified
GST slabs verified against notified rates (0%, 5%, 12%, 18%, 28%, 40%).
Source
Indian tax and finance tools use slabs and rates from official government publications (e.g. Income Tax Department) and widely accepted financial formulas. Rates are reviewed when regulations change.
Disclaimer
Results are estimates for planning purposes only. Not financial, legal, tax, or medical advice. Verify with a qualified professional before making decisions.
How we build and review calculators

Country-specific calculator. Amounts stay in India (INR) even if you change the header country.

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Formula & method

Add GST: GST = Base × Rate%, Total = Base + GST. Remove GST: Base = Inclusive ÷ (1 + Rate%), GST = Inclusive − Base. Intra-state supplies split GST equally into CGST and SGST.

Examples

  • ₹1,000 + 18% GST → GST ₹180, total ₹1,180 (CGST ₹90 + SGST ₹90)
  • ₹1,180 inclusive at 18% → base ₹1,000, GST ₹180

Wrong result? Report an issue · Methodology

How to Use

  1. Choose Add GST (exclusive → inclusive) or Remove GST (inclusive → exclusive).
  2. Enter the amount in rupees and select the GST rate.
  3. Review base amount, GST, CGST/SGST split, and total.
  4. Copy figures for your invoice or quote.

Frequently Asked Questions

What GST rates does this calculator support?

Common India GST slabs: 0%, 5%, 12%, 18%, 28%, and 40% (selected goods). Pick the rate that applies to your product or service category.

How is CGST and SGST calculated?

For intra-state supplies, GST is split equally: CGST = SGST = half of total GST. IGST applies for inter-state supplies; use half the split as a quick estimate only.

Is this an official GST filing tool?

No. This is a quick arithmetic helper. File returns and generate e-invoices on the GST portal or through certified accounting software.

Guides & worked examples

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GST Calculator Examples

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GST Calculator | Utilquip | Utilquip