GST Calculator
Add or remove GST and see CGST, SGST and IGST split.
| Net amount (before GST) | ₹1,000.00 |
|---|---|
| GST @ 18% | ₹180.00 |
| CGST @ 9% | ₹90.00 |
| SGST / UTGST @ 9% | ₹90.00 |
| Total amount (with GST) | ₹1,180.00 |
How to Use the GST Calculator?
Add or remove GST from any amount and see the CGST, SGST and IGST split instantly.
- 1
Choose Add GST if your price excludes tax, or Remove GST if it already includes tax.
- 2
Enter the amount in rupees.
- 3
Pick the GST rate, such as 5% or 18%, or type a custom rate.
- 4
Choose Within the same state for CGST and SGST, or To another state for IGST.
- 5
Read the net amount, GST amount and total, and click Copy breakdown to share it.
Benefits of Using Our GST Calculator
Inclusive and exclusive
Add GST to a base price or extract GST from a final price in one place.
CGST, SGST and IGST split
See exactly how the tax divides for intra state and inter state supplies.
All common rates
Quick buttons for 0.25%, 3%, 5%, 12%, 18%, 28% and 40%, plus custom rates.
Instant and free
Results update as you type, with no sign-up.
Who Can Use This GST Calculator?
Small business owners
Price products and prepare invoices correctly.
Accountants
Double check tax amounts quickly.
Freelancers
Work out GST on services you bill.
Shoppers
See how much tax is included in a price.
Frequently Asked Questions
Everything you need to know about the GST Calculator.
How do I calculate GST on an amount?
To add GST, multiply the amount by the rate and divide by 100, then add it to the amount. For example, 18% GST on 1,000 rupees is 180 rupees, so the total is 1,180 rupees. This calculator does it for you instantly.
How do I remove GST from an inclusive price?
Divide the price by 1 plus the rate divided by 100. For example, for 1,180 rupees with 18% GST, 1,180 divided by 1.18 gives a base price of 1,000 rupees, so the GST is 180 rupees.
What is the difference between CGST, SGST and IGST?
For a sale within the same state, GST is split equally into Central GST and State GST, for example 9% plus 9% for an 18% rate. For a sale to another state, the full rate is charged as Integrated GST.
What are the current GST rates in India?
After the GST rate rationalisation that took effect on 22 September 2025, most goods and services fall under 5% or 18%, with a special 40% rate for luxury and sin goods, and lower rates such as 0.25% and 3% for certain items like precious stones and gold. Some items are exempt. The older 12% and 28% rates are still included here for past invoices.
Is this calculator suitable for filing returns?
It is a quick and accurate calculator, but GST rules include exemptions, cess and special cases. For filing returns, always confirm rates and rules with a qualified tax professional or the official GST portal.
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