GST Calculator
Calculate GST for any amount instantly with India slab rates. Add GST to get final price or remove GST to find base amount and tax component for invoices and billing.
Last updated: March 2026
GST Breakdown
Original amount:
₹ 0
₹ 0
GST amount:
₹ 0
₹ 0
Total amount:
₹ 0
₹ 0
CGST (half):
₹ 0
₹ 0
SGST (half):
₹ 0
₹ 0
IGST (full):
₹ 0
₹ 0
How to use GST Calculator
1
Enter the base amount or GST-inclusive amount
2
Choose Add GST or Remove GST mode
3
Pick GST rate or enter a custom value
4
Read GST, CGST, SGST, and final amount instantly
When to use this tool
- Preparing invoices with correct tax values
- Calculating GST component from billed totals
- Estimating product pricing with tax included
- Cross-checking tax calculations in accounting
Frequently Asked Questions
What GST rates are supported?
5%, 12%, 18%, 28%, and custom rates are supported.
What is CGST and SGST?
CGST and SGST are Central and State GST components.
How to remove GST from total?
Use Remove GST mode to reverse-calculate original amount.
Is it free?
Yes, this calculator is completely free.