Free GST Calculator

A GST calculator is a simple yet powerful tool that helps you compute the Goods and Services Tax (GST) applicable on the sale or purchase of goods and services. The goods and services tax calculator eliminates the need for manual calculations and gives you an accurate breakdown of tax components, whether you're adding GST to a base price or removing it from an inclusive amount.

Whether you’re a business owner issuing invoices or a consumer verifying tax charges, using an online GST calculator ensures clarity and accuracy. The tool is designed to work with common GST slabs like 5%, 12%, 18%, and 28%, making it highly versatile for everyday use.

A free GST calculator can be used by individuals, freelancers, accountants, and enterprises alike to save time and reduce the risk of errors in tax computation.

How Does the GST Calculator Work?

The free GST calculator online works in 2 ways:

1. For adding GST to a base amount:

GST Amount = (Original Cost × GST%) ÷ 100

Final Price = Original Cost + GST Amount

2. For removing GST from an inclusive amount:

Base Price = Inclusive Amount × 100 ÷ (100 + GST%)

GST Amount = Inclusive Amount – Base Price

Use the best GST calculator by simply entering the amount and choosing the applicable GST rate - It will take care of the rest right away.