What are CGST, SGST, and IGST?

CGST (Central GST) and SGST (State GST) are charged on intra-state transactions (within the same state), each being half the total GST rate. IGST (Integrated GST) is charged on inter-state transactions at the full GST rate.

Is my data safe when using the GST Calculator?

Yes. All computations, parsing, and transformations occur locally inside your browser via client-side JavaScript. No input data is sent to external servers.

Is the GST Calculator completely free?

Yes. QuizOxa Tools is 100% free with no subscription, account creation, or rate limits required.

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Calculator Client-Side

Free Online GST Calculator — Calculate GST Instantly

Calculate GST amounts instantly for any product or service. Switch between GST-exclusive (add GST to base price) and GST-inclusive (extract GST from total price) modes. Supports standard GST rates (5%, 12%, 18%, 28%) and custom rates. View detailed breakdowns of CGST, SGST (for intra-state) and IGST (for inter-state) components. Essential for Indian businesses, accountants, and tax professionals.

100% In-Browser Privacy Instant Zero-Lag Execution Zero Data Uploaded

Calculation mode

Amount (before GST)

GST rate (%)

Supply type

Base Price₹1000.00

CGST (9%)₹90.00

SGST (9%)₹90.00

Total GST₹180.00

Total Price₹1180.00

How to Use GST Calculator

Input Your Data

Paste or type your input into the workspace above, or upload a target file directly.

Configure Settings

Select desired formatting options, conversion rules, or target units suited for your project.

Instant Processing

Execution completes in milliseconds right inside your browser memory with zero network latency.

Export & Copy

Use one-click copy to move the processed output to your clipboard or download files locally.

Key Highlights & Privacy Guarantee

Zero Server Storage

Your data is processed strictly in client-side RAM using WebAssembly and standard JavaScript APIs. No data packets or credentials are sent to our backend.

High-Speed Execution

By removing server round-trips, transformations occur in under a millisecond, optimizing Core Web Vitals and eliminating processing queues.

Free with Zero Limits

No subscription tiers, no hidden credit systems, and no registration walls. Run unlimited conversions and utilities whenever needed.

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Frequently Asked Questions

GST-exclusive means the listed price does NOT include GST — the tax is added on top. GST-inclusive means the listed price already includes GST, and you need to extract the base price and tax amount from the total.