GST Calculator

Calculate Goods and Services Tax (GST) quickly and accurately

Calculate GST amount and final price. Supports all GST rates including 5%, 12%, 18%, and 28%.

How to use this tool

Enter the Price (net price before tax)
Enter the GST (%) (e.g., 5, 12, 18, 28)
Click Calculate GST to see the price including GST, GST amount, and net price

Privacy & Security

All calculations are performed locally in your browser. No data is ever sent to any server.

GST Formula

Price (₹)

GST Rate (%)

What is GST?

GST (Goods and Services Tax) is a value‑added tax levied on most goods and services sold for domestic consumption.

How is GST calculated?

GST Amount = (Original Price × GST Rate) / 100. Price including GST = Original Price + GST Amount.

Can I calculate GST from the final price?

Yes, base price = Final Price / (1 + GST% / 100)

Is this tool free?

Yes – completely free with no registration, limits, or watermarks.