GST Calculator
Add GST on top of an amount, or work out the base price and GST amount hidden inside a GST-inclusive price.
GST rate
Mode
Enter an amount above.
How to calculate GST
- Enter the amount.
- Pick a GST rate, or type a custom one.
- Choose “Add GST” or “Remove GST” and read the result.
Frequently asked questions
What's the difference between Add and Remove?
“Add GST” treats your amount as the base price and adds GST on top. “Remove GST” treats your amount as already including GST and works backward to find the base price.
Which GST rate should I use?
Use whichever rate applies to your goods or service under India's GST slabs — 5%, 12%, 18% or 28% are the most common, or enter a custom rate.