GST Calculator India
India's most accurate GST calculator. Calculate GST for all slabs — 5%, 12%, 18%, and 28%. Works for both inclusive and exclusive GST calculations.
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GST Calculator
FinanceFree · No signup
Base Price (Pre-GST)
₹0.00
Total GST (18%)
+ ₹0.00
Total Price (Post-GST)
₹0.00
CGST (9.0%)
₹0.00
SGST (9.0%)
₹0.00
IGST (18%)
₹0.00
💡 Enter an amount to calculate GST. Toggle "Add/Remove GST" to calculate inclusive or exclusive taxes.
Guide
How to Use GST Calculator
Enter Amount
Type the original price of the goods or service.
Select GST Rate
Choose the applicable GST slab: 5%, 12%, 18%, or 28%.
Choose Type
Select "Exclusive" to add GST to price, or "Inclusive" to extract GST from total price.
Get Results
Instantly see GST amount, CGST+SGST breakdown, and total price.
Frequently Asked Questions
India has four main GST slabs: 5% (essential items), 12% (standard goods), 18% (most goods & services), and 28% (luxury items). Some items like fresh food are exempt (0%).
GST Amount = (Original Price × GST Rate) / 100. Total Price = Original Price + GST Amount. Our calculator does this automatically.
GST exclusive means the price shown doesn't include GST (add tax on top). GST inclusive means the price already includes the tax (extract tax from total).
For intra-state transactions, GST is split: CGST (Central GST) + SGST (State GST), each being half the total rate. For inter-state, it's IGST (Integrated GST) at the full rate.
Businesses with turnover above ₹40 lakh (₹20 lakh for services, ₹10 lakh for special states) must register for GST and collect it from customers.