GST Calculator
Free GST Calculator for India. Calculate GST, CGST, and SGST instantly for all rates.
Add GST to Amount
Enter the amount excluding GST and the GST rate to calculate the final amount with GST included.
About GST in India
GST (Goods and Services Tax) is a unified indirect tax in India. Businesses registered under GST collect tax on supplies and pay accumulated Input Tax Credit.
- CGST - Central GST (central government)
- SGST - State GST (state government)
- IGST - Integrated GST (inter-state)
⚠️ Disclaimer
This calculator is for informational purposes only. GST rates and rules vary by product category and may change. For official compliance and business purposes, please consult with tax professionals or refer to official GST portal (gst.gov.in).
Frequently Asked Questions
What are the standard GST rates in India?
Standard rates are 5%, 12%, 18%, and 28%. Some items have 0% or 0.25% rates.
What is the difference between normal and reverse GST calculation?
Normal: Amount × (1 + Rate%). Reverse: If final amount includes GST, we calculate the base and GST separately.
Is this calculator accurate?
Yes, we use official GST formulas. However, always verify with official sources for critical Business decisions.
Do you store my data?
No. All calculations happen in your browser. We do not collect or store any of your data.