GST Calculator
Looking for a free online GST calculator to calculate GST amount, CGST, SGST, and IGST instantly? Our GST Calculator Tool helps you add or remove GST from any amount in just one click. Whether you are a business owner, accountant, or student, this simple GST calculator makes tax calculations quick, accurate, and effortless.
GST Calculator
Calculation Details
What is GST (Goods and Services Tax)?
GST (Goods and Services Tax) is a single indirect tax system implemented in India to replace multiple taxes like VAT, Service Tax, and Excise Duty. It’s divided into three components:
- CGST (Central Goods and Services Tax)
- SGST (State Goods and Services Tax)
- IGST (Integrated Goods and Services Tax)
This calculator automatically computes all three (CGST, SGST, and IGST) and gives you clear and detailed results.
How to Use the GST Calculator
Follow these simple steps to calculate GST online:
- Select Calculation Type – Choose between Add GST or Remove GST using the toggle buttons.
- Enter Amount – Input your base price (without GST) or final amount (with GST).
- Select GST Rate – Choose from 0%, 5%, 18%, or 40% (default 18%).
- View Results Instantly – See your GST Amount, CGST, SGST, IGST, and Total Price with detailed breakup.
💡 Example:
If you enter ₹10,000 with an 18% GST rate, the calculator will show:
- CGST = ₹900
- SGST = ₹900
- Total GST = ₹1,800
- Total Amount (with GST) = ₹11,800
Why Use Our Online GST Calculator?
Fast & Accurate – Instant GST calculations with a click.
Dual Mode – Add GST or remove GST from total amount.
Mobile Friendly – Works perfectly on all devices (Android, iPhone, Desktop).
Free Forever – 100% free GST calculator for all users.
Detailed Results – Get CGST, SGST, IGST, and total amount breakdown.
Supports Multiple Rates – 0%, 5%, 12%, 18%, and 28% (customizable).
GST Calculation Formula
GST Slab Rates in India (2025 Updated)
| GST Rate | Common Items Covered |
|---|---|
| 0% | Fresh food, education, healthcare |
| 5% | Essential goods, household items |
| 12% | Processed food, business services |
| 18% | Electronics, consumer goods |
| 28% | Luxury items, automobiles |
Who Can Use This GST Calculator?
- Business owners & Traders – For billing and invoice calculations
- E-commerce sellers – To find inclusive or exclusive GST prices
- Accountants & Tax Professionals – To verify GST breakdowns
- Students & Learners – For understanding GST structure and rates
Features of GST Calculator Widget
- Interactive toggle buttons (Add GST / Remove GST)
- Customizable GST percentage dropdown
- Auto-calculation for CGST, SGST, IGST
- Clean, responsive, and modern UI
- Built-in JavaScript for instant computation
Advantages of Using GST in India
- Eliminates cascading tax effect
- Simplifies the tax structure
- Encourages transparent business practices
- Boosts ease of doing business
- Promotes uniform tax rates across states
Frequently Asked Questions (FAQ) – GST Calculator Online 2025
- Q1. What is a GST Calculator?
A free online tool to calculate GST, CGST, SGST, and IGST instantly. - Q2. How to use this GST Calculator?
Enter amount, choose GST rate, and click Add or Remove GST to get instant results. - Q3. How to remove GST from total amount?
Select “Remove GST,” enter your total value, and see the base price without GST. - Q4. What are CGST, SGST, and IGST?
CGST is Central Tax, SGST is State Tax, and IGST applies to interstate sales. - Q5. What are the GST rates in India 2025?
The slabs are 0%, 5%, 12%, 18%, and 28%. - Q6. Is this GST Calculator free?
Yes, it’s 100% free, fast, and works on mobile and desktop. - Q7. Can I use it for business billing?
Yes, it’s perfect for invoices, e-commerce, and GST billing. - Q8. Is this GST Calculator accurate?
Yes, it uses official GST formulas for precise tax results. - Q9. What’s the formula to calculate GST?
GST = (Amount × GST Rate) / 100. - Q10. Does this calculator show CGST and SGST separately?
Yes, it gives a full breakdown of CGST, SGST, IGST, and total amount.
Conclusion
Use our free GST calculator online to find the GST amount, CGST, SGST, and IGST with accuracy.
Whether you’re adding GST to a base amount or removing GST from an inclusive amount, this tool gives you instant, detailed results with no hidden charges.
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