How do I use GST Calculator?

Open GST Calculator, add the required input, adjust the available options, and run the tool in your browser. The workflow is designed to be direct, mobile-friendly, and easy to repeat.

Is GST Calculator secure?

Yes. ToolsCrush tools are built for client-side processing wherever the browser can handle the task, so your files or text stay on your device instead of being uploaded to a remote server.

Can I use GST Calculator on mobile?

Yes. GST Calculator uses the same responsive ToolsCrush interface across desktop, tablet, and mobile screens, so you can complete the task from a modern mobile browser.

Does GST Calculator require signup or installation?

No. You can use GST Calculator directly from the website without creating an account. You can also install ToolsCrush as a PWA for quicker access when supported by your browser.

Free GST Calculator Online - Add & Remove GST

Base Amount (₹)

GST Rate

Base Amount

₹0.00

GST Amount (5%)

₹0.00

Total Amount
₹0.00

GST Rate Reference

Rate	Category
5%	Essential food, transport
12%	Processed food, mobiles
18%	Electronics, services
28%	Luxury, automobiles

Formulas

Add GST:
GST = Base × Rate%
Total = Base + GST

Remove GST:
Base = Total ÷ (1 + Rate%)
GST = Total − Base

Frequently Asked Questions

What is GST?

GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services in India. It replaced multiple cascading taxes and was implemented on July 1, 2017.

What is the difference between adding and removing GST?

Add GST: You have a base price (excluding GST) and want to calculate the final price with GST included.
Remove GST: You have a total price (inclusive of GST) and want to extract the base price and GST amount separately.

Which products fall under 18% GST?

The 18% GST slab covers most services, electronics, computers, paints, some construction materials, insurance premiums, telecom services, and many manufactured goods.

Is this GST calculator free to use?

Yes! Our GST calculator is completely free to use. All calculations happen in your browser — no data is sent to any server, ensuring complete privacy.

Where can I find related developer tools?

Use the breadcrumb and related links on this page to return to Developer Tools or discover closely related ToolsCrush utilities that support the same workflow.