GST Calculator – Calculate GST Online in India (5%, 12%, 18% & 28%)
What is GST?
Goods and Services Tax (GST) is an indirect tax introduced in India to replace multiple indirect taxes such as VAT, Service Tax, Excise Duty and others. GST follows the principle of “One Nation, One Tax”, making the taxation system more transparent and streamlined.
GST is applicable on the supply of goods and services across India and is broadly divided into:
- CGST (Central Goods and Services Tax)
- SGST (State Goods and Services Tax)
- IGST (Integrated Goods and Services Tax)
- UTGST (Union Territory Goods and Services Tax)
Our GST Calculator helps individuals, business owners, freelancers, accountants and taxpayers calculate GST instantly.
GST Rates in India
| GST Rate | Applicable On |
|---|---|
| 0% | Essential items |
| 5% | Selected household products and services |
| 12% | Various processed goods and services |
| 18% | Most goods and services |
| 28% | Luxury and premium products |
Note: GST rates may change based on notifications issued by the Government of India. Always refer to official notifications for the latest updates.
GST Calculation Formula
Add GST
GST Amount = (Original Amount × GST Rate) ÷ 100
Total Amount
Total Amount = Original Amount + GST Amount
Remove GST
Original Amount = Total Amount ÷ (1 + GST Rate ÷ 100)
GST Amount from Inclusive Price
GST Amount = Total Amount − Original Amount
GST Calculation Examples
Example 1 – Add GST @18%
- Original Price = ₹1,000
- GST Rate = 18%
Calculation:
- GST Amount = ₹180
- Total Amount = ₹1,180
Example 2 – Add GST @5%
- Original Price = ₹5,000
Calculation:
- GST Amount = ₹250
- Total Amount = ₹5,250
Example 3 – Remove GST @18%
- Total Amount = ₹11,800
Calculation:
- Original Amount = ₹10,000
- GST Amount = ₹1,800
CGST vs SGST vs IGST
| Particular | Description |
| CGST | Collected by the Central Government |
| SGST | Collected by the State Government |
| IGST | Applicable on interstate transactions |
| UTGST | Applicable in Union Territories |
Example
Suppose the GST amount is ₹180.
Intrastate Supply
- CGST = ₹90
- SGST = ₹90
Interstate Supply
- IGST = ₹180
How to Use GST Calculator?
Step 1
Enter the Amount.
Step 2
Select GST Percentage:
- 5%
- 12%
- 18%
- 28%
- Custom GST Rate
Step 3
Choose:
- Add GST
- Remove GST
Step 4
Click Calculate.
The calculator will instantly display:
- GST Amount
- Total Amount
- CGST Amount
- SGST Amount
- IGST Amount
- Amount before GST
Benefits of GST Calculator
- Instant GST Calculation
- Error-Free Results
- Saves Time
- Suitable for Businesses
- Useful for Tax Planning
- Easy to Use on Mobile Devices
- Supports Multiple GST Rates
Who Can Use GST Calculator?
This tool is useful for:
- Shop Owners
- MSMEs
- Freelancers
- Chartered Accountants
- Students
- Startups
- Small Businesses
- Online Sellers
- Service Providers
- Tax Consultants
GST Inclusive vs GST Exclusive
GST Inclusive
The GST amount is already included in the selling price.
Example:
- Total Price = ₹1,180
- GST Rate = 18%
The calculator will determine:
- Actual Amount = ₹1,000
- GST = ₹180
GST Exclusive
GST is added separately to the original amount.
Example:
- Product Price = ₹1,000
- GST = ₹180
- Total = ₹1,180
Why Should Businesses Use GST Calculators?
Businesses perform hundreds of calculations every month. Manual calculations may result in:
- Billing mistakes
- Tax errors
- Incorrect invoices
- GST filing issues
Using an online GST Calculator can significantly improve:
- Accuracy
- Productivity
- Time Management
- Tax Compliance
GST Rates Quick Reference Table
| Amount | GST Rate | GST Amount | Total |
| ₹1,000 | 5% | ₹50 | ₹1,050 |
| ₹1,000 | 12% | ₹120 | ₹1,120 |
| ₹1,000 | 18% | ₹180 | ₹1,180 |
| ₹1,000 | 28% | ₹280 | ₹1,280 |
| ₹5,000 | 18% | ₹900 | ₹5,900 |
| ₹10,000 | 18% | ₹1,800 | ₹11,800 |
Frequently Asked Questions (FAQs)
1. What is GST?
GST stands for Goods and Services Tax, an indirect tax levied on the supply of goods and services in India.
2. Is GST Calculator free?
Yes, our GST Calculator is completely free to use.
3. Can I calculate 18% GST online?
Yes, simply enter the amount and select 18% GST.
4. Can I remove GST from the total amount?
Yes, the calculator supports GST-inclusive price calculations.
5. What is CGST?
CGST is collected by the Central Government on intrastate supplies.
6. What is SGST?
SGST is collected by the respective State Government.
7. What is IGST?
IGST applies when goods or services are supplied from one state to another.
8. Which GST rate is most commonly used?
18% GST is one of the most commonly applicable rates for goods and services.
9. Can businesses use this calculator?
Yes. Businesses, accountants and professionals can use it regularly.
10. Is this calculator suitable for invoices?
Yes, it can assist in invoice calculations. However, businesses should ensure that invoices comply with applicable GST requirements.
11. Can I calculate custom GST rates?
Yes, custom GST percentages can also be supported.
12. Does GST Calculator work on mobile devices?
Yes, it is fully compatible with smartphones, tablets and desktop devices.
13. Is GST applicable to all products?
No. Certain goods and services may attract different rates or exemptions under GST laws.
14. Is GST the same across India?
GST follows a uniform taxation framework across India, though applicable rates depend on the category of goods and services.
15. Why should I use an online GST Calculator?
It helps save time, improves accuracy and reduces calculation errors.
Conclusion
The GST Calculator is an essential financial tool for individuals and businesses across India. Whether you want to calculate GST at 5%, 12%, 18% or 28%, add or remove GST from an amount, or understand CGST, SGST and IGST calculations, this tool provides quick and accurate results.
Use our GST Calculator to simplify tax calculations and improve financial accuracy in your day-to-day transactions.