GST Calculator India
Calculate GST instantly for any amount — all slabs, CGST, SGST & IGST breakup included
How to Use GST Calculator
Select your base amount, choose the applicable GST rate (5%, 12%, 18%, or 28%), and specify whether you want to add GST to a price or extract GST from a GST-inclusive amount. Choose intra-state for CGST+SGST breakup or inter-state for IGST calculation.
Adding GST:
GST Amount = (Original × GST%) ÷ 100
Total = Original + GST Amount
Removing GST:
Original = (Inclusive × 100) ÷ (100 + GST%)
GST = Inclusive − Original
CGST = SGST = GST ÷ 2 (intra-state) | IGST = Full GST (inter-state)
Frequently Asked Questions
What is GST?
GST (Goods and Services Tax) is India's unified indirect tax that replaced multiple taxes like VAT, service tax, and excise duty in July 2017.
What are the GST slabs in India?
India has 4 main GST slabs — 5% for essential goods, 12% for processed items, 18% for most services and goods, and 28% for luxury items.
What is the difference between CGST and SGST?
For intra-state transactions, GST is split equally — half goes to Central Government (CGST) and half to State Government (SGST). For inter-state, full GST is paid as IGST.
How do I find the base price from GST-inclusive amount?
Use the formula: Base Price = (Total Price × 100) ÷ (100 + GST%). Our calculator does this automatically when you select "Remove GST from Amount."
Is GST applicable on all goods and services?
No. Essential items like fresh vegetables, milk, eggs, and educational services are exempt from GST (0% slab).