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# GST calculator

Add GST to a price that excludes it or pull GST back out of a price that already includes it, at any rate you enter.

Enter an amount and a rate to split the tax out.

This is standard GST arithmetic, nothing more: it holds no country rate table and applies no slab rules, so you type the rate your invoice actually carries. Nothing is sent to a server; the amounts and the rate stay in this tab. Figures are not rounded to cents, so compare the last digits with your receipt's own rounding before you rely on them.
Options

## More unit & math tools

- [Unit converter](/converters/units)
- [Fraction calculator](/converters/fractions)
[All unit & math tools](/converters)

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Markdown version: https://nutter.tools/converters/gst-calculator.md
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