GST Calculator
Calculate GST amount, CGST, SGST, and total amount instantly. Enter base amount and GST rate, or enter total amount to reverse-calculate. Free, private, no signup.
Base Amount
₹0.00
GST Amount
₹0.00
CGST (if applicable)
₹0.00
SGST (if applicable)
₹0.00
Total Amount
₹0.00
Why use this GST calculator?
GST (Goods and Services Tax) is a consumption tax used in many countries like India, Canada, Australia, etc. Calculating GST manually can be error-prone. This tool simplifies the process by providing instant results for both forward and reverse calculations. No signup required.
- Forward & reverse calculation – calculate GST from base or extract base from total.
- CGST/SGST split – automatically divides GST into Central and State components for intra-state sales.
- Preset rates – quick buttons for common GST rates (5%, 12%, 18%, 28%).
- Privacy first – all calculations happen in your browser.
- No signup – start immediately.
How to use this calculator
1. Select mode
Choose "Base + GST" or "Total (incl. GST)" based on what you know.
2. Enter amount
Input the base amount or total amount.
3. Set GST rate
Pick from dropdown or preset buttons.
4. View results
See base, GST, CGST, SGST, and total instantly.
Common GST rates in India
- 0.25% – precious stones.
- 3% – gold, silver.
- 5% – essential items like packaged food, footwear.
- 12% – processed foods, cell phones.
- 18% – most goods and services.
- 28% – luxury items, automobiles, etc.
Note: Rates may vary; always check current regulations.