Calculation Result
Base Amount₹10,000
Total GST (18%)₹1,800
CGST (9%)₹900
SGST (9%)₹900
Total Amount
₹11,800
What is a GST Calculator?
A GST Calculator quickly computes Goods and Services Tax for any transaction. You can add GST to a base price or reverse-calculate to extract the base price from a GST-inclusive amount — with automatic CGST and SGST split for intra-state transactions.
How to Use It
- 1Choose 'Add GST' to add tax to a base price, or 'Remove GST' to extract the base from an inclusive price
- 2Enter the amount
- 3Select the applicable GST slab (5%, 12%, 18%, or 28%) or enter a custom rate
- 4Instantly view the base amount, GST amount (split into CGST + SGST), and total
Example
A freelancer bills ₹50,000 for a service at 18% GST. Adding GST: ₹50,000 × 1.18 = ₹59,000 total invoice. The client pays ₹59,000; CGST = ₹4,500 and SGST = ₹4,500 are deposited with the government.
Why Use It
- Quickly calculate invoice totals inclusive of GST
- Reverse-calculate the pre-tax base price from a GST-inclusive quote
- Understand the CGST/SGST split for intra-state billing
- Verify GST amounts on invoices you receive