Calculators
GST Calculator
Free GST calculator — add GST to a price or extract the tax from an inclusive amount. Supports common rates and custom GST percentages for accurate totals.
How to use this tool
- Open the interactive tool on this page.
- Enter or select the information you want to process.
- Review the result, then copy or download it when that option is available.
Fast, free, and easy to access
HandyToolsOnline tools require no account. The interactive interface loads in your browser and is designed to work on desktop, tablet, and mobile devices.