How is GST calculated?

For adding GST (Exclusive), the formula is: GST Amount = (Original Cost x GST%) / 100. For removing GST (Inclusive), the formula is: Original Cost = Total Cost - [Total Cost x (100 / (100 + GST%))].

Is my calculation data saved anywhere?

No. The GST calculator runs entirely on your local browser. None of the amounts or billing numbers are sent to our servers.

Premium GST Calculator

Instantly calculate inclusive and exclusive GST for accurate billing and accounting.

Calculation Type

+ Add GST

- Remove GST

Initial Amount

₹

GST Rate (%)

Total Post-GST Amount

₹ 0

Base Price (Net Amount) ₹ 0

Total GST Amount ₹ 0

CGST (Half) ₹ 0

SGST (Half) ₹ 0

Base Price 0%

GST 0%

Best Free Online GST Calculator

Whether you are generating invoices for clients, purchasing supplies for your retail business, or managing daily accounting, calculating accurate Goods and Services Tax (GST) is mandatory. Our Premium GST Calculator allows you to instantly compute the correct tax figures without using complex formulas.

You can easily switch between Add GST (Exclusive) to find out the final selling price, and Remove GST (Inclusive) to reverse-calculate the true base price from a total bill. The tool also provides an automatic breakdown of CGST and SGST for intrastate transactions. Best of all, calculations are performed instantly in your browser, maintaining 100% privacy for your business data.