Free Tool

India GST Calculator

Add or remove 18% GST at India's standard rate, with the net, GST and gross in INR instantly.

This free India GST calculator adds or removes GST at India's standard rate of 18%. Enter an amount in INR, choose Add or Remove, and it shows the net amount, the GST and the gross total instantly. No sign-up, and nothing leaves your browser.

Net (excl. GST)1,000.00 INR
GST (18%)180.00 INR
Gross (incl. GST)1,180.00 INR

Adding 18% GST (India) to your net amount.

How to add 18% GST

Multiply the net amount by 0.18 to get the GST, then add it on. For example, 1,000.00 INR net + 180.00 INR GST = 1,180.00 INR gross.

How to remove GST from a price

Divide the GST-inclusive amount by 1.18. For example, 1,000.00 INR including GST ÷ 1.18 = 847.46 INR net, so the GST is 152.54 INR. Subtracting 18% of the gross instead would give 820.00 INR, which understates the net amount. It's the most common GST mistake.

18% GST on common amounts

Net (INR)GST (18%)Gross
100.00 INR18.00 INR118.00 INR
500.00 INR90.00 INR590.00 INR
1,000.00 INR180.00 INR1,180.00 INR
5,000.00 INR900.00 INR5,900.00 INR
10,000.00 INR1,800.00 INR11,800.00 INR

About GST in India

GST (goods and services tax) is a consumption tax charged on most goods and services. It works the same way as VAT: businesses charge it on their sales and generally claim credits for the GST they pay on purchases.

The standard rate in India is 18%, charged in INR. Reduced or zero rates may apply to some goods and services. Use the calculator's custom rate for those, and confirm current rates with the tax authority before you file.

Frequently asked questions

What is the GST rate in India?

The standard GST rate in India is 18%. Some goods and services may be taxed at a reduced or zero rate, so check the rate that applies to what you sell.

How do I add 18% GST to a price?

Multiply the net price by 0.18 to get the GST, then add it on. For example, 1,000.00 INR net plus 180.00 INR GST is 1,180.00 INR gross.

How do I remove GST from a price in India?

Divide the GST-inclusive price by 1.18. For example, 1,000.00 INR including GST is 847.46 INR net and 152.54 INR GST. Don't just subtract 18% of the gross; that gives 820.00 INR, which is wrong.

Is this India GST calculator free?

Yes. It's completely free, needs no sign-up, and runs entirely in your browser.

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