GST Calculator

Quickly add or remove GST from any amount. Our free online GST calculator makes Goods and Services Tax calculations simple and instant.

Add GST Remove GST

Initial Amount ($)

GST Rate (%)

GST Amount

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Total Price

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About the GST Calculator

The GST Calculator from TechnoCodex is a simple and powerful tool for businesses and consumers to quickly calculate Goods and Services Tax. Whether you need to find the total price of a product with GST added, or extract the base price from a GST-inclusive amount, our tool provides instant and accurate results.

How to Use the Calculator

Select a calculation type using the radio buttons:

Add GST: Use this when you have the pre-tax price. Enter the initial amount and the GST rate to find the GST amount and the final, gross price.
Remove GST: Use this when you know the total price (including tax). Enter the gross amount and the GST rate to find the original base price and how much GST was included.

Frequently Asked Questions (FAQs)

What is GST?
Goods and Services Tax (GST) is an indirect tax used in many countries on the supply of goods and services. It is a value-added tax that is levied at all stages from manufacture up to final consumption.

Is this calculator free to use?
Yes, this online GST Calculator is 100% free. All calculations are performed in your browser, and we do not store any of your financial data.

Why are there different GST rates?
Different GST rates are applied to various categories of goods and services. Essential items are often taxed at a lower rate, while luxury items are typically taxed at a higher rate.