---
type: "tool"
title: "Reverse GST Calculator"
description: "Free reverse GST calculator — extract the base price and GST amount from a GST-inclusive total. Instant CGST/SGST breakdown."
resource: "https://www.gstcalculators.in/reverse-gst-calculator.html"
language: "en"
bundle_generated: "2026-10-12"
---

# Reverse GST Calculator

Free reverse GST calculator — extract the base price and GST amount from a GST-inclusive total. Instant CGST/SGST breakdown.

- Canonical page: [Reverse GST Calculator](https://www.gstcalculators.in/reverse-gst-calculator.html)
- Publisher: [Tool Master Hub / GSTCalculators.in](../site.md)
- Category: [Basic Financial Calculators](../categories/basic.md)

This is a discovery summary of the public page, not an independently reviewed replacement. Use the canonical page for current inputs, assumptions, formulas, source links and results. The bundle generation date does not mean that tax rules were reviewed on that date.

## Topics on the page



## Questions and answers from the visible page

### How do I calculate the base price from a GST-inclusive amount?

Base Price = Inclusive Amount ÷ (1 + GST Rate/100). For example, at 18% GST, divide the inclusive amount by 1.18 to get the base price.

### Why is this different from the main GST Calculator?

The main GST Calculator also supports this via its "Remove GST" toggle — this page is a dedicated, faster version for when you only need to extract the base price and GST amount from a total.

### Does this work for all GST slabs?

Yes — select any current slab (0%, 5%, 18%, 40%) or special rate (3% gold, 0.25% rough diamonds), plus the legacy 12%/28% rates for reconciling older invoices.

## Accuracy and corrections

[Methodology](https://www.gstcalculators.in/methodology.html) · [Editorial policy](https://www.gstcalculators.in/editorial-policy.html) · [Disclaimer](https://www.gstcalculators.in/disclaimer.html) · [Report a problem](https://www.gstcalculators.in/contact.html).