GST Calculator
Add or remove Goods and Services Tax (GST) from any amount instantly.
Calculation Mode
Amount (₹)
₹
GST Rate (%)
Calculation Details
Initial Amount
₹ 1,000
Base Amount (Excl. GST)
₹ 1,000
CGST (9%)
₹ 90
SGST (9%)
₹ 90
Total GST Amount
₹ 180
Total Amount
₹ 1,180
How to Calculate GST?
Adding GST:
GST Amount = (Original Cost x GST Rate) / 100
Net Price = Original Cost + GST Amount
Removing GST:
GST Amount = Original Cost - [Original Cost x {100 / (100 + GST Rate)}]
Net Price = Original Cost - GST Amount
GST Slabs in India
| Slab | Common Items |
|---|---|
| 0% | Milk, eggs, fresh vegetables, unbranded wheat |
| 5% | Sugar, tea, coffee, edible oil, spices |
| 12% | Mobile phones, computers, processed food |
| 18% | Financial services, IT services, branded garments |
| 28% | Automobiles, luxury items, aerated drinks |
Example
A product priced at ₹1,000 (before tax) with 18% GST costs ₹1,180 after tax — ₹180 is the GST amount. Working backwards, a ₹1,180 GST-inclusive price has a base price of ₹1,000.
Common Use Cases
- Adding GST to a base price when creating an invoice.
- Extracting the GST amount from a GST-inclusive price on a receipt.
- Checking which GST slab applies to a product or service.
FAQs
What's the difference between CGST, SGST, and IGST?
For sales within a state, GST splits equally into CGST (central) and SGST (state). For inter-state sales, IGST applies instead, going to the central government and then apportioned to the destination state.