GST Calculator

Calculating GST can be confusing when you need to work out the tax amount and final price quickly. Our free GST Calculator helps you calculate GST on a product or service in just a few seconds.

Enter the amount, select the applicable GST rate, and choose whether you want to add GST to the price or remove GST from a GST-inclusive amount. The calculator shows the GST amount and the final price instantly.

“How to Calculate GST”

GST can be calculated by multiplying the original amount by the GST rate and dividing the result by 100.

GST Formula:

GST Amount = (Original Amount × GST Rate) ÷ 100

For example, if a product costs ₹10,000 and the GST rate is 18%:

GST Amount = (₹10,000 × 18) ÷ 100
GST Amount = ₹1,800

The total price including GST will be:

₹10,000 + ₹1,800 = ₹11,800

So, an ₹10,000 product with 18% GST costs ₹11,800 including GST.

GST Rates in India

GST rates in India vary depending on the type of goods or services. Common GST rate slabs include 5%, 12%, 18%, and 28%, although specific products and services may have different tax treatment, exemptions, or special rates.

The GST rate applicable to a product or service should always be checked from an official or reliable source before calculating the final tax amount.

For a quick calculation, you can select 5%, 12%, 18%, or 28% in the GST Calculator above and enter the relevant amount.

GST Inclusive and Exclusive Amount

GST calculations can be done in two common ways: adding GST to a price or finding the GST portion from a price that already includes GST.

GST Exclusive Amount

When a price is exclusive of GST, the GST is added separately to the original price.

For example, if the price is ₹1,000 and the GST rate is 18%:

GST = ₹180

Total price = ₹1,180

GST Inclusive Amount

When a price is inclusive of GST, the displayed price already contains the GST amount. The GST portion can be calculated by separating the tax from the total amount.

For example, if the total price is ₹1,180 including 18% GST, the original price before GST is ₹1,000 and the GST amount is ₹180.

Our calculator supports both types of calculations, making it easier to find the GST amount and the applicable total or base price.

GST Calculation Examples

Here are some simple examples to understand how GST calculations work.

Example 1: 5% GST

If the price of a product is ₹2,000 and the GST rate is 5%:

GST = ₹2,000 × 5 ÷ 100 = ₹100

Total price = ₹2,100

Example 2: 12% GST

If a service costs ₹5,000 and GST is 12%:

GST = ₹5,000 × 12 ÷ 100 = ₹600

Total price = ₹5,600

Example 3: 18% GST

If a product costs ₹10,000 and GST is 18%:

GST = ₹10,000 × 18 ÷ 100 = ₹1,800

Total price = ₹11,800

Example 4: 28% GST

If the taxable value is ₹20,000 and GST is 28%:

GST = ₹20,000 × 28 ÷ 100 = ₹5,600

Total price = ₹25,600.

These examples can help you understand how different GST rates affect the final price.

What is GST?

GST stands for Goods and Services Tax. It is an indirect tax charged on the supply of many goods and services in India.

How is GST calculated?

GST is generally calculated by multiplying the taxable amount by the applicable GST rate and dividing by 100. For example, 18% GST on ₹1,000 is ₹180.

What are the common GST rates in India?

Common GST slabs include 5%, 12%, 18%, and 28%. The applicable rate depends on the specific goods or services.

How do I calculate GST-inclusive price?

When an amount already includes GST, the GST portion can be separated from the total amount using the applicable GST rate. Our calculator can help you calculate the amount before GST and the GST component.

Is this GST Calculator free to use?

Yes. This GST Calculator is free to use and does not require registration.

Can I use this calculator for business calculations?

You can use it for quick estimates and basic calculations. For official tax filing, invoicing, or compliance, always verify the applicable GST rules and rates from official sources.

You can also use our Free Online Calculators for EMI, FD, RD, salary, age, percentage, and other useful calculations.