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Gst Calculator

Free · Accurate · India

Free GST Calculator for India – Add or Remove GST Online

An easy online GST calculator for India — add GST, remove GST, or reverse a price with CGST, SGST, IGST and UTGST split automatically. No signup, nothing leaves your browser.

GST rate
Does the amount include GST?
Where is the supply happening?

You pay

—

Enter an amount to see the result.

How was this calculated?

Enter an amount to see the step-by-step working.

Recent calculations

No calculations yet. Results appear here automatically.

How to use

Three steps to any GST answer

  1. Enter the amount

    Type the price in rupees. Comma-separated and ₹-prefixed values work too.

  2. Pick a rate and mode

    Choose a GST slab (or enter a custom rate), then choose Exclusive to add GST or Inclusive to pull it out.

  3. Choose where the supply happens

    Intra-state splits into CGST + SGST. Inter-state shows IGST. Union territories use CGST + UTGST.

The full breakdown updates live as you type — no button needed.

Understanding GST

What is GST?

GST (Goods and Services Tax) is a single, destination-based tax levied on the supply of goods and services across India. It replaced multiple indirect taxes, so one rate now covers a whole supply chain.

The total GST you see is the full tax rate. How it is reported depends on whether the supply is within one state or across states.

GST types

  • CGST

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  • SGST

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  • IGST

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  • UTGST

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Rates

GST rate slabs in India

GST is charged at one of a small set of slabs. The applicable slab depends on how the goods or services are classified under the GST law.

  • Slab0%
  • Slab0.25%
  • Slab3%
  • Slab5%
  • Slab12%
  • Slab18%
  • Slab28%

From raw materials to luxury goods, each category maps to a slab. This calculator lets you use any of these rates — or enter a custom rate — without locking you into a specific product.

The maths

Two formulas cover everything

Add GST

Final = Amount × (1 + rate)

e.g. ₹10,000 × 1.18 = ₹11,800 at 18%

Remove GST

Taxable = Final ÷ (1 + rate)

e.g. ₹11,800 ÷ 1.18 = ₹10,000 at 18%

Everyday scenarios

One calculator, all the questions

  • How much GST should I add to my price? — select Exclusive.
  • How much GST is hiding inside an MRP? — select Inclusive.
  • What should I charge a customer so I keep ₹10,000? — enter ₹10,000 as Exclusive.
  • A customer can pay ₹10,000 maximum — enter it as Inclusive.
  • Want a discount and GST in one go? — toggle Add discount.

Short Tutorial

The whole of GST in five short steps — no jargon.

  1. Find your slab

    Every product or service falls into one of the slabs — 5%, 12%, 18% or 28%. Not sure which applies? The calculator accepts any rate, including a custom one.

  2. Start from the taxable amount

    GST is charged on the price before tax. If a discount applies, the taxable amount drops first, and GST is calculated on that lower figure.

  3. Add or remove the tax

    To set a price, add GST: GST = Amount × Rate ÷ 100. To pull GST out of an inclusive MRP, work backwards with the Inclusive mode.

  4. See who receives it

    Within one state, GST splits into CGST + SGST. Across states or on imports it is a single IGST.

  5. Register and claim ITC

    Businesses above the turnover threshold need a GSTIN. Registered buyers can then set off the GST they paid on purchases against the GST they collect.

That's the whole picture — the calculator handles the arithmetic for you.

Rate guide

Which slab applies to what

  • 0%0% examples
  • 5%5% examples
  • 12%12% examples
  • 18%18% examples
  • 28%28% examples

Rates change with government notifications — always confirm the current rate for your HSN/SAC code.

Free GST Calculator India

Free GST Calculator India – Your Online GST Calculator for Every Calculation

Need a fast and reliable way to work out Goods and Services Tax? This free GST calculator for India does the heavy lifting for you. Enter any amount, pick a rate, and get an instant answer — whether you are a shopkeeper pricing products, an accountant preparing invoices, or a customer checking an MRP. This GST calculator India online is built for real-world Indian billing: it understands rupees, comma-separated values, and the exact slabs used across the country. Best of all, it is completely free to use, with no signup, no downloads, and no hidden limits.

Why this tool

Why Use Our Free Online GST Calculator?

The online GST calculator also handles discounts and payment gateway fees in the same pass, so you can price goods realistically. What takes minutes on paper — adding GST, splitting it into CGST and SGST, and checking the final total — takes seconds here. That is what makes it an easy GST calculator: the interface is clean, the language is simple, and you do not need a tax background to get correct numbers.

How to use

How to Use the Online GST Calculator India

Using this GST calculator India online takes three steps. First, type the amount in rupees. Second, choose the applicable GST rate — 5%, 12%, 18%, 28%, or a custom percentage. Third, choose Exclusive if you want to add GST on top of the amount, or Inclusive if the amount already contains GST. The calculator then shows the taxable value, the GST amount, and the final price instantly, along with the step-by-step working. That is the whole workflow — an easy GST calculator India experience from start to finish.

The most-used slab

The 18 Percent GST Calculator

18% is the most common GST slab in India — it covers most services, electronics, appliances, telecom, and business hotels. With the 18 percent GST calculator built into this tool, you get the answer in one glance: ₹10,000 plus 18% GST becomes ₹11,800, and the ₹1,800 tax is split into ₹900 CGST and ₹900 SGST for intra-state supplies. Simply pick the 18% slab and enter your amount; the tool does the rest. Whether you need to quote a client or verify an invoice, the 18% calculation is handled precisely every single time.

Work backwards

Reverse GST Calculator – Remove GST from a Price

The reverse GST calculator is the same tool working backwards. When a price already includes GST — like an MRP — select Inclusive and the calculator extracts the tax hidden inside. For example, a ₹11,800 invoice at 18% gives back a taxable amount of ₹10,000 and a GST component of ₹1,800. This reverse GST calculator is essential for bookkeeping, for input tax credit tracking, and for businesses that need to separate tax from total revenue on their GST returns.

Check an MRP

Including GST Calculator – Find What’s Inside a Price

Closely related is the including GST calculator mode. Most retail prices in India already include GST, but sometimes you need to know the base price and the tax portion separately — for an invoice line item, a reimbursement, or a purchase report. Enter the final amount, choose the rate, and the including GST calculator splits the total into pre-tax price and GST, then shows the split for CGST and SGST as well. It works live, updating as you type, with the full working shown below the result.

CGST and SGST

GST Calculator India with CGST and SGST Split

Indian GST has two main components for supplies within a state: CGST (Central GST) and SGST (State GST), each taking half of the total tax. The GST calculator India CGST and SGST mode shows both amounts separately — exactly how GST invoices and returns need them. For inter-state sales it switches to IGST, and for union territories it shows CGST + UTGST. This Indian GST calculator covers every supply type, so whatever you sell or buy, the tax split is displayed correctly and consistently.

Special rates

Gold GST Calculator India – 3% on Gold

Jewellers and buyers can rely on the gold GST calculator India too. Gold and gold jewellery attract 3% GST in India, a rate most generic calculators do not offer. Our tool lets you enter 3% as a custom rate — or any other notified rate — so the gold GST calculator India works for making charges, hallmarking, and other components of a jewellery bill. Select Custom, type 3, and see the exact GST on your gold purchase instantly, split correctly for your state.

On the go

Is There a GST Calculator App?

This website works like a GST calculator app — it runs entirely in your browser, loads instantly on mobile, and needs no installation. Bookmark it on your phone’s home screen and it behaves just like an app: open it, calculate, close it. Because every calculation happens locally, there is no GST calculator app download to manage, no updates to install, and nothing to pay. You get the convenience of a native app without any of the baggage.

For everyone

Who Should Use This Indian GST Calculator?

This Indian GST calculator is for everyone who handles money in India: freelancers adding GST to invoices, small business owners pricing products, accountants preparing monthly returns, students learning how GST works, and buyers checking whether an MRP is fair. The tool even remembers your recent calculations on this device, so returning to it feels natural — a quick, easy GST calculator you can trust day after day.

Bookmark this free GST calculator India today. Whether you need a reverse GST calculator, an 18 percent GST calculator, a gold GST calculator India, or a full CGST and SGST breakdown, you will find it all on this one page — accurate, private, and free forever.

FAQ

Quick answers

How to calculate GST in a calculator?

Enter the amount, select the GST rate and press Calculate. The GST is Amount × Rate ÷ 100. For example, on ₹10,000 at 18%, the GST is ₹1,800 and the total is ₹11,800.

How to add GST in a calculator?

Use Exclusive mode: Total = Amount + (Amount × Rate ÷ 100). Adding 18% GST to ₹5,000 gives a total of ₹5,900.

How to minus GST on a calculator?

Use Inclusive mode to remove GST from inside the price: Base = Amount × 100 ÷ (100 + Rate). A ₹11,800 price that includes 18% GST has a base of ₹10,000 and ₹1,800 of GST.

How to use the GST calculator?

Enter the amount, choose Exclusive or Inclusive, pick the rate (5%, 12%, 18%, 28% or custom), and select intra-state or inter-state for the CGST/SGST or IGST split. The GST, total and tax breakdown are shown instantly.

How much GST is included in a price?

GST inside an inclusive price = Price × Rate ÷ (100 + Rate). A ₹11,800 price at 18% contains ₹1,800 of GST; the base amount is ₹10,000.

What is a GST calculator?

A GST calculator is a free online tool that adds GST to a base price, removes GST from an inclusive price, or reverse-calculates the base amount, showing CGST, SGST or IGST separately.

How is GST calculated?

GST = Taxable amount × GST rate ÷ 100. On ₹20,000 at 18%, the GST is ₹3,600 and the total including GST is ₹23,600.

How is 18% GST calculated?

Multiply the amount by 18 and divide by 100. On ₹1,000: 1,000 × 18 ÷ 100 = ₹180 of GST. On ₹10,000 it is ₹1,800.

How to calculate 18% GST on ₹20,000?

18% of ₹20,000 = ₹20,000 × 18 ÷ 100 = ₹3,600. If ₹20,000 is the base price, the total including GST is ₹23,600; if the ₹20,000 already includes GST, the base is ₹16,949 and the GST is ₹3,051.

How much GST will I pay for ₹50,000?

It depends on the slab. At 5% you pay ₹2,500 (total ₹52,500), at 12% ₹6,000 (total ₹56,000), at 18% ₹9,000 (total ₹59,000) and at 28% ₹14,000 (total ₹64,000).

How much is 18% GST on ₹1,000?

18% GST on ₹1,000 is ₹180, so the total including GST is ₹1,180.