Input the Product/Service Amount
Typically entering the initial product or service cost or value is a good place to start.
It could be GST exclusive (amount before GST), or GST inclusive with GST).
Select GST Rate
Select the GST rate applicable located in your region. For example:
In India, the rates of GST are 5%, 12%, 18% and 28%.
In Australia, the standard rate of GST is 10%.
For most calculators, there is a dropdown or input field where you can choose or enter the appropriate rate.
Now select the Calculation Type (Add or Remove GST)
Most calculators have two modes:
Add GST: When you have the base price, it calculates the total price inclusive of GST.
Remove GST: If you already have a GST-inclusive price extract the GST component.
View the Results
The calculator will display:
GST Amount: The selected rate GST component.
Total Amount: If you choose to add GST, the total price is inclusive of GST.
Base Amount: The GST-free amount if you have decided to remove GST.
You can also calculate for different amounts or rates (Optional).
If you don’t want to recalculate for a different amount, just change the value and see if the result changes.