Money calculator
GST calculator
Add GST to a price, or find the GST already included in a bill. Uses the slabs in force since 22 September 2025.
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The amount I have is
GST rate
Sale is
Price including GST
–
–price before GST
–total GST
–CGST
–SGST
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GST formulas
Add GST: GST = Price × Rate ÷ 100
Remove GST: GST = Price × Rate ÷ (100 + Rate)
Within one state, GST is split equally into CGST (to the central government) and SGST (to the state). For a sale to another state, the full amount is IGST.
GST slabs since 22 September 2025
| Rate | Used for (examples) |
|---|---|
| 0% (nil) | Fresh food, notebooks, pencils, maps and many essentials |
| 5% | Many daily-use items, packaged food, medicines, dairy products |
| 18% | Most other goods and services, including electronics and small cars |
| 40% | Luxury and "sin" goods, such as aerated drinks, pan masala and large cars |
| 3% / 0.25% | Gold and jewellery / rough diamonds |
The 12% and 28% slabs were mostly removed in the 2025 reform. Always check the exact rate for your item's HSN or SAC code.
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