EveryTool

GST Calculator

Add GST to a price, or find the price before GST from a total. Shows the CGST + SGST or IGST split. Works for VAT too.

Amount

GST rate

Or type any rate (%)

Result

Total with GST–

Price before GST: –
CGST: –
SGST: –
Total GST: –
Total with GST: –

GST formulas

Add GST: GST = amount × rate ÷ 100, total = amount + GST. Remove GST: price before GST = total × 100 ÷ (100 + rate). For a sale within the same state, GST is split equally into CGST and SGST; for a sale to another state, it's charged as IGST. Rates change from time to time, so check the current rate for your item on the official GST portal.