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Free GST Calculator India (2026) — Inclusive & Exclusive

Calculate GST instantly with India's simplest GST calculator. Supports 5%, 12%, 18% and 28% slabs.

GST Calculator

Net Amount₹0
Total GST (18%)₹0
CGST (9.0%)₹0
SGST (9.0%)₹0
Total Amount₹0
✨ AI Explainer

What this GST means for your business

Personalised to your numbers. Free 5/day · 25/day signed-in.

About this tool

How to use this GST calculator

Enter any amount, choose whether the value is GST-inclusive or exclusive, pick the GST slab and you get the breakdown instantly. Works for all standard Indian GST rates: 5%, 12%, 18% and 28%.

Why GST math matters

If you are a freelancer, small business or shop owner you will run this calculation dozens of times a week. Wrong GST on an invoice can mean penalties or overpaid tax — both eat into your margin. Use this every time before sending an invoice.

How to use the GST Calculator

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the GST Calculator above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the GST Calculator.

Is the GST Calculator free to use?

Yes. The GST Calculatoron 7BusyBoss is completely free — no signup, no paywall, no usage cap. We do recommend paid alternatives in a sidebar card, but the core tool stays free.

Do I need to sign up to use the GST Calculator?

No. The GST Calculatorworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.

Does the GST Calculator work on mobile?

Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.

Is my data safe when I use the GST Calculator?

Yes. The GST Calculatorruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.

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