How do I calculate GST online for free?

Enter the amount, select GST rate (5%, 12%, 18%, or 28%), choose Add GST or Remove GST, click Calculate. See GST amount and final price instantly. Free, no signup.

What are GST rates in India?

GST rates in India: 0% (essentials), 5% (basic goods), 12% (processed foods), 18% (most goods/services), 28% (luxury items). Our calculator supports all standard rates.

What is the difference between GST inclusive and exclusive?

GST exclusive means GST is added on top of the base price. GST inclusive means the price already includes GST. Use Remove GST to find the base price from a GST-inclusive amount.

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💰 GST Calculator Online Free

Add or remove GST tax from any amount instantly. Supports all standard rates. No signup, instant results.

💵 Amount

📊 GST Rate

GST Calculator Online Free — Add or Remove GST Instantly

Our free online GST calculator helps you calculate Goods and Services Tax instantly. Add GST to a base price or remove GST from an inclusive price. Supports all standard rates: 5%, 12%, 18%, 28% and custom rates.

GST Formula

Add GST: GST Amount = Price × GST% ÷ 100 | Total = Price + GST Amount
Remove GST: Base Price = Total ÷ (1 + GST%÷100) | GST = Total − Base Price

GST Rates

5% — Basic goods, household items
12% — Processed foods, business class travel
18% — Most goods and services, restaurants
28% — Luxury items, cars, tobacco

GST Inclusive vs Exclusive

GST Exclusive: Price does not include GST — use Add GST. GST Inclusive: Price already includes GST — use Remove GST to find base price.

How to Use the GST Calculator

Enter the amount you want to calculate GST on
Select or enter the GST rate percentage
Choose whether to add GST or remove GST from the amount
View the GST amount and total instantly

Frequently Asked Questions

How do I calculate GST online?

Enter amount, select GST rate, click Add GST or Remove GST. See base price, GST amount and total instantly. Free.

How do I add GST to a price?

Enter original price, select rate, click Add GST. Formula: GST = Price × Rate÷100. Total = Price + GST.

How do I remove GST from a price?

Enter GST-inclusive price, select rate, click Remove GST. Tool calculates original base price and GST amount.

What GST rates are supported?

5%, 12%, 18%, 28% preset buttons plus custom rate input for any percentage.

What is GST inclusive price?

GST inclusive means price already includes GST. Use Remove GST to find base price before tax.