Goods and Services Tax (GST) is a crucial part of pricing and taxation in many countries, especially in India. Whether you’re a business owner, a freelancer, a service provider, or just an individual trying to understand tax on your bill, calculating GST manually can be confusing.
Our free online GST Calculator is designed to simplify this process by allowing users to calculate GST-exclusive or GST-inclusive amounts with just a few inputs. This tool is fast, accurate, and user-friendly—making it ideal for professionals and everyday users alike.
GST Calculator
✅ What is GST?
GST (Goods and Services Tax) is a unified indirect tax levied on the supply of goods and services. It replaces multiple indirect taxes such as VAT, excise duty, and service tax.
There are two main components of GST in India:
- CGST (Central GST)
- SGST (State GST) or IGST (for inter-state transactions)
GST rates vary depending on the product or service and typically fall into these categories: 0%, 5%, 12%, 18%, and 28%.
🔢 How to Use the GST Calculator
This tool supports two calculation types:
- GST Exclusive (calculates GST on top of base price)
- GST Inclusive (finds the base price and GST included in the total)
👇 Follow these steps:
- Enter the Amount (₹):
- For GST exclusive, input the base price
- For GST inclusive, input the total price (already includes GST)
- Enter the GST Rate (%):
- e.g., 5, 12, 18, or 28
- Choose Calculation Type:
- Exclusive of GST: Adds GST to base price
- Inclusive of GST: Extracts GST from total price
- Click “Calculate”
- You’ll see:
- Amount before GST
- GST amount
- Total amount (with GST)
- You’ll see:
- Click “Reset” to clear the values.
📊 Example Calculations
1. GST Exclusive Example
- Amount: ₹1000
- GST Rate: 18%
- Calculation Type: Exclusive
GST Amount: ₹180
Total Amount: ₹1180
2. GST Inclusive Example
- Total Amount: ₹1180
- GST Rate: 18%
- Calculation Type: Inclusive
Base Price: ₹1000
GST Amount: ₹180
🎯 Features and Benefits of the GST Calculator
✅ Dual Mode – Inclusive & Exclusive
Calculate both types of GST values with precision.
✅ Supports All GST Rates
Handles 0–100% GST, suitable for any product or service category.
✅ Currency Symbols & UI-Friendly
Includes ₹ currency display and intuitive layout.
✅ Instant Results
Calculations happen in real-time when you click the “Calculate” button.
✅ Error-Free
Reduces human error and miscalculations.
✅ Fully Responsive
Works on desktop, tablet, and mobile.
✅ No Login or Signup
Just open the page and calculate—completely free and anonymous.
🧠 20 Frequently Asked Questions (FAQs)
1. What is GST?
GST is an indirect tax levied on the sale of goods and services in India.
2. Who needs to calculate GST?
Business owners, freelancers, customers, and anyone dealing with pricing that includes tax.
3. What does ‘GST inclusive’ mean?
It means the price already includes the GST amount.
4. What does ‘GST exclusive’ mean?
It means GST is not yet added to the price—it needs to be applied.
5. How is GST calculated?
Exclusive: GST = (Amount × GST%)
Inclusive: GST = Total – (Total ÷ (1 + GST%/100))
6. Can I use this calculator for any GST rate?
Yes, it works from 0% to 100%.
7. Is the calculator mobile-friendly?
Absolutely. It works seamlessly on mobile browsers.
8. What currency does it support?
The calculator displays in ₹ (INR), the Indian Rupee.
9. Does this tool store my data?
No, all calculations are done locally in your browser.
10. Can I calculate GST for a bulk invoice?
Yes, as long as you input the correct total amount.
11. How do I know which GST rate to apply?
Refer to GST rate slabs published by the Indian government based on item/service type.
12. Is GST applicable on services too?
Yes, GST applies to both goods and services.
13. Is this calculator free to use?
Yes, completely free—no hidden charges or ads.
14. What is the GST rate for restaurants?
Usually 5% (without ITC) or 18% (with ITC), but always check the latest rules.
15. Can this calculator be used by chartered accountants?
Yes, it’s perfect for professionals needing quick tax estimates.
16. Can I calculate IGST separately?
This calculator computes total GST; IGST can be manually split if needed.
17. Can I change the currency from ₹ to $ or €?
Not directly, but the math remains the same—you can treat ₹ as any currency for concept.
18. Does it include HSN or SAC code lookup?
No, this tool is focused solely on GST math, not classification.
19. Can this tool be embedded in another website?
Yes, developers can reuse the code and embed it as needed.
20. What happens if I enter 0% GST?
The calculator will return 0 GST and show the total as the same as the entered amount.
🏁 Final Words
Whether you’re running a business, issuing invoices, or simply checking if a vendor charged you correctly, our GST Calculator is the easiest and most efficient way to get clear, instant answers.
By allowing GST-exclusive and inclusive calculations, and supporting flexible input with a polished design, this calculator saves time and eliminates confusion in financial planning.