GST Calculator India

About GST Calculator India

GST Calculator India is built for traders, freelancers, shopkeepers, and accountants who need fast and accurate GST calculations every day. Switch between exclusive mode (add GST to a base amount) and inclusive mode (extract GST from a total) with one tap. The multi-item calculator lets you bill multiple products at different GST rates in a single invoice — see the running subtotal, total GST, and grand total live. Get a full CGST & SGST split for intra-state transactions and IGST for inter-state. Save calculations to history with optional notes, search history by amount or note, and share a branded image card instantly. Long-press the app icon for home screen shortcuts to jump straight to the 5%, 12%, 18%, or 28% rate. Customise with 5 accent colours, light/dark/system theme, and Indian or Western number format. 100% offline — no internet or account ever required.

Key Features

• Multi-item calculator — bill multiple items with different GST rates in one invoice
• Exclusive mode — add GST to base amount
• Inclusive mode — remove GST from total amount
• Rate presets: 0%, 5%, 12%, 18%, 28% + custom rate input
• Prominent CGST & SGST split for intra-state transactions
• IGST display for inter-state transactions
• Calculation history with search — filter by amount or note
• Share result as a branded image card
• Home screen shortcuts — jump to 5%, 12%, 18%, 28% directly
• 5 accent colours, themes, and Indian/Western number format