GST Calculator
Add or remove GST from any amount. Calculate inclusive/exclusive prices instantly.
GST Calculator
$
Enter the base price without GST
%
Amount + GST (12%)
$0.00
$0.00
GST Amount
$0.00
Base Amount
Calculation Breakdown
Enter an amount to see the formula
Base Amount
$0.00
GST (12%)
$0.00
Total Amount
$0.00
GST Rates by Country
Adding GST
Use this when you have a base price and need to calculate the total including GST.
Formula: Base × (1 + GST%) = Total
Example: $100 × 1.12 = $112
Removing GST
Use this when you have a price that includes GST and want to find the base amount.
Formula: Total ÷ (1 + GST%) = Base
Example: $112 ÷ 1.12 = $100