GST Calculator
Enter an amount and select the applicable GST rate — 5%, 12%, 18%, or 28% — to instantly calculate the GST amount and the total price. The calculator supports two modes: exclusive (adding GST on top of a base price) and inclusive (extracting the GST component from a price that already includes tax).
Exclusive mode is what most businesses need when quoting a pre-tax price and want to show the customer the final amount. Inclusive mode is useful when you have a shelf price or MRP and need to know how much of that price is tax — common in retail, invoicing, and compliance scenarios.
The tool handles all four standard Indian GST slabs and shows a clear breakdown of CGST and SGST (or IGST) so you can use the numbers directly on invoices and returns.
By The Paper Room Editorial Team — Calculator Tools
Frequently asked questions
What is the difference between exclusive and inclusive GST?▼
Exclusive GST means the tax is added on top of the base price — if your product costs 1000 and GST is 18%, the total is 1180. Inclusive GST means the price already contains the tax — a 1180 inclusive price at 18% means the base price is 1000 and the GST component is 180.
Which GST rate should I use?▼
The rate depends on the goods or services: 5% covers essential items and transport, 12% covers processed foods and business-class travel, 18% is the standard rate for most services and manufactured goods, and 28% applies to luxury items, automobiles, and sin goods.
Does this calculate CGST and SGST separately?▼
Yes. For intra-state transactions, GST is split equally between CGST (Central) and SGST (State). The calculator shows both components. For inter-state transactions, the full amount is IGST.