ToolsDoc

GST Calculator

GST amount and total price from an amount and GST rate.

%

Worth Knowing

Goods and Services Tax works like VAT — a percentage added to the sale price — and is used in countries including Australia, India, Canada, and New Zealand, though rates and structures differ. India notably uses multiple GST slabs for different goods, while Australia applies a flat 10%. As with VAT, the important distinction is whether you're adding GST to a base amount or backing it out of a tax-inclusive total, since reversing the calculation isn't simply subtracting the percentage.

How to Use

  1. Enter Amount (excl. GST) into the first field of the GST Calculator.
  2. Fill in the rest: GST rate.
  3. Your result appears instantly as you type — there's no submit button or page reload.

Frequently Asked Questions