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FREE GST TOOL

GST Calculator for India.
Fast & simple.

Calculate GST instantly. Add GST to a base price or remove GST from a GST-inclusive amount and see CGST, SGST and IGST.

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Your GST calculation appears hereEnter an amount and GST rate, then calculate.

GST rates & quick examples

5% GST

Commonly used for selected essential and consumer categories.

12% GST

Used for various goods and services under applicable GST rules.

18% GST

A widely used standard rate for many goods and services.

28% GST

Applies to specified higher-tax-rate goods and categories.

Note: This calculator is for estimation only. Actual GST treatment depends on the product/service, place of supply, exemptions and applicable Indian tax rules.

Free GST Calculator India

Use our free GST Calculator to calculate Goods and Services Tax quickly and easily. Enter an amount, select the applicable GST rate and calculate the GST amount, final price, CGST, SGST or IGST.

You can use this online GST calculator to add GST to a taxable amount or remove GST from a GST-inclusive price. The calculator includes commonly used GST rates such as 0%, 5%, 12%, 18% and 28%.

How to Use the GST Calculator

  1. Enter the amount.
  2. Select the applicable GST rate.
  3. Select Add GST or Remove GST.
  4. Choose CGST + SGST or IGST as applicable.
  5. Click Calculate GST.
  6. Review the GST breakdown and final amount.

GST Calculation Formula

For an amount exclusive of GST:

GST Amount = Base Amount × GST Rate ÷ 100

Final Amount = Base Amount + GST Amount

Example: 18% GST

If the taxable amount is ₹10,000 and GST is 18%:

  • Base Amount: ₹10,000
  • GST: ₹1,800
  • Final Amount: ₹11,800

Remove GST from an Inclusive Amount

When the price already includes GST, the taxable amount can be calculated using the applicable GST rate.

Taxable Amount = Inclusive Amount × 100 ÷ (100 + GST Rate)

For example, an amount of ₹11,800 inclusive of 18% GST corresponds to a taxable amount of ₹10,000 and a GST component of ₹1,800.

CGST, SGST and IGST

CGST

CGST stands for Central Goods and Services Tax and may apply to applicable intra-state supplies along with SGST.

SGST

SGST stands for State Goods and Services Tax and may apply to applicable intra-state supplies along with CGST.

IGST

IGST stands for Integrated Goods and Services Tax and applies to applicable inter-state supplies.

Common GST Rates

GST Rate GST on ₹10,000 Total
0%₹0₹10,000
5%₹500₹10,500
12%₹1,200₹11,200
18%₹1,800₹11,800
28%₹2,800₹12,800

GST Calculator for Businesses

Businesses, freelancers, consultants, agencies and service providers can use a GST calculator to estimate tax amounts while preparing quotations, prices and invoices.

GST Calculator for Online Sellers

Online sellers and e-commerce businesses can use the calculator to estimate GST while determining product prices and preparing customer invoices.

Create a GST Invoice

After calculating your GST, create a professional invoice using our free GST Invoice Generator.

Frequently Asked Questions

What is a GST Calculator?

A GST Calculator is an online tool used to calculate GST on a taxable amount or determine the GST component of an inclusive amount.

How do I calculate 18% GST?

Multiply the taxable amount by 18 and divide by 100. For ₹10,000, the GST is ₹1,800 and the total is ₹11,800.

Can I remove GST from an inclusive price?

Yes. Select Remove GST, enter the inclusive amount and select the applicable GST rate.

Is the GST Calculator free?

Yes. The ADN WebTech GST Calculator is free to use online.

Disclaimer: This calculator is intended for general estimation. Applicable GST rates, exemptions, place-of-supply rules and tax treatment can vary. Verify the applicable rules before using a calculation for accounting, invoicing or tax filing.