How is GST calculated?

GST amount is calculated by multiplying the base price by the GST rate percentage. When adding GST, the final price is the base price plus the GST amount.

What are the common GST slabs in India?

The most common GST slabs in India are 5%, 12%, 18%, and 28%, depending on the category of goods or services.

Is this GST Calculator free?

Yes, completely free with no sign-up required, and calculations happen instantly in your browser.

🧾 Free Financial Tool

GST Calculator

Add or remove GST from any price. Instantly, accurately.

Calculate GST for any Indian tax slab in seconds — no manual math needed.

➕ Add GST ➖ Remove GST 🇮🇳 All Indian Slabs

CALCULATE GST

What's your amount?

Choose a mode, enter the amount and GST rate.

Amount (Before GST)

Enter the amount you want to calculate GST on.

Choose GST rate

🥗 5% Essential goods

📦 12% Standard goods

🛍️ 18% Most goods & services

💎 28% Luxury items

SIMPLE PROCESS

How GST Calculator Works

Calculate GST in three simple steps.

✏️

Choose Mode

Select Add GST to find the final price, or Remove GST to find the base price.

🧮

Enter Details

Type the amount and pick the applicable GST slab.

✅

Get Result

See the GST amount and total or base price instantly.

BUILT FOR

Who Uses This Calculator?

GST Calculator helps with everyday billing and pricing needs.

🏪ShopkeepersBilling & pricing

🧾InvoicesAdding GST to invoices

🛒ShoppersChecking final price

💼FreelancersQuoting with GST

Fast, simple and private

All GST calculations happen instantly in your browser. Nothing is uploaded or stored.