Whether you’re a business owner or a consumer, calculating Goods and Services Tax (GST) is a common task in New Zealand and Australia. Our simple GST Calculator lets you both add GST to a net price or remove it from a gross price.

New to GST calculations? Read our complete guide on how to calculate GST with step-by-step examples.

`GST Calculator`


Calculation Type


Price ($) *


GST Rate (%) *

Want to understand the math behind these calculations? Check out our guide on how to calculate GST

What are the current GST rates in this GST Calculator?

New Zealand’s GST rate is 15%.
Australia’s GST rate is 10%.
Canada’s GST rate is 5%.
Our calculator defaults to 15% but you can easily switch to 10% or enter any other rate.