GST
Calculate GST inclusive or exclusive amount in a few clicks
GST Calculator
₹
Base amount₹0
GST amount₹0
Total amount₹0
Base amount
GST amount
How to use this calculator
GST inclusive vs exclusive
GST exclusive means tax is added on top of the base price. GST inclusive means the price already contains tax, and you need to split the base and tax components.
Common GST slabs in India
India uses multiple GST rates such as 5%, 12%, 18%, and 28% depending on the product or service category.
Formula
GST Amount = Base Amount × GST Rate / 100Examples
- Base ₹1,000 + 18% GST → Total ₹1,180
- Inclusive ₹1,180 at 18% → Base ₹1,000 + GST ₹180
Frequently asked questions
Can I calculate reverse GST?
Yes. Choose GST inclusive mode to find the base amount and tax portion from a final price.
Is this suitable for GST filing?
This is a quick helper tool. For official GST filing, use your accountant or GST portal records.