GST Calculator – Free Online Goods and Services Tax Calculator

Use our Free GST Calculator to easily calculate Goods and Services Tax (GST) online. Whether you want to find GST-inclusive or GST-exclusive amounts, this tool gives you accurate and instant results. Ideal for businesses, freelancers, accountants, or anyone who wants to verify GST calculations quickly.

Key Features of Our GST Calculator

Instant GST Calculation: Compute GST-inclusive and exclusive prices instantly.
Supports All GST Rates: 0%, 5%, 12%, 18%, and 28% rates included.
Dual Mode: Calculate GST Added or GST Removed amounts.
Automatic Breakdown: View CGST, SGST, and IGST split instantly.
Custom Input: Enter your own tax percentage for flexibility.
Mobile Friendly: Works perfectly on smartphones, tablets, and desktops.
Completely Free: No signup or data tracking required.

How to Use the GST Calculator

Enter the Net Amount or Total Amount you want to calculate.
Select your GST Rate (5%, 12%, 18%, or 28%).
Choose if you want to Add GST or Remove GST.
Click Calculate — get the total tax amount and final value instantly.
Use Reset to clear inputs and start a new calculation.

GST Calculation Formula

1. For GST Inclusive Price

GST Amount = (Original Amount × GST%) / (100 + GST%)

Net Price = Original Amount – GST Amount

2. For GST Exclusive Price

GST Amount = (Original Amount × GST%) / 100

Total Price = Original Amount + GST Amount

Why Use Our GST Calculator

Accurate, fast, and simple to use.
Handles both GST-inclusive and exclusive prices.
Works globally — supports multiple currencies.
Perfect for businesses, accountants, and online sellers.
No registration or installation required.

Benefits for Businesses

Instantly calculate invoice GST amounts.
Verify supplier or client billing accuracy.
Save time on manual GST formula calculations.
Use as a quick audit and verification tool.

Frequently Asked Questions (FAQs)

What is GST?

GST stands for Goods and Services Tax. It is a value-added tax levied on most goods and services sold for domestic consumption.

Q1. What are the current GST rates?

The main GST slabs are 0%, 5%, 12%, 18%, and 28%, depending on the type of product or service.

Q2. Can I use this calculator for reverse GST?

Yes. You can easily remove GST from a total amount to find the base price before tax.

Q3. Is this tool free?

Yes. Our GST Calculator is 100% free and does not require any sign-up.

Q4. Does this work on mobile devices?

Absolutely. The tool is responsive and works seamlessly on all screen sizes.

Q5. Is my data stored or shared?

No. All calculations are processed locally on your browser. We never collect or store your information.

Conclusion

The GST Calculator is the fastest and most reliable way to calculate Goods and Services Tax online. Whether you’re a small business owner, accountant, or student, it’s the perfect tool to simplify your billing and tax calculations.