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GST Calculator

Add or remove GST from an amount at any slab rate.

How this is calculated
Add: Total = Amount × (1 + rate/100). Remove: Base = Amount ÷ (1 + rate/100)

Assumptions used in this calculation

  • GST slabs: Rates shown reflect commonly used Indian GST slabs.

About this calculator

The GST calculator adds GST to a base amount or extracts the GST already included in a total, at any of the standard Indian GST slab rates (0%, 5%, 12%, 18%, 28%).

Worked example

₹10,000 + 18% GST

Result: Total = ₹11,800 (GST = ₹1,800)

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