GST Calculator
FreeCalculate GST-inclusive and GST-exclusive prices for any amount
About GST Calculator
Adding or removing GST from a price is a common task that is easy to get wrong when you are doing it quickly. A GST calculator handles both directions: enter an amount to find the GST-inclusive price, or work backward from an inclusive figure to see the base price and tax portion.
Type your amount and rate, and the tool returns the inclusive total, the exclusive base, and the GST amount instantly in your browser. It is free, needs no signup, and there is nothing to install. This is useful for invoicing, pricing products, checking receipts, and bookkeeping. Whether you are adding tax to a quote or breaking down a bill, it gives you accurate figures without manual percentage math.
Common uses
- Adding GST to a product or service price
- Working out the base price and tax from a GST-inclusive total
- Preparing invoices with correct tax figures
- Checking the GST portion of a receipt or bill
- Pricing items consistently with tax included or excluded
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
Can it calculate both inclusive and exclusive prices?
Yes. You can add GST to get an inclusive price or remove it from an inclusive amount to see the base and tax.
What do I need to enter?
Enter the amount and the GST rate, and the tool returns the inclusive total, the exclusive base, and the tax amount.
Does it work for any GST rate?
Yes. You set the rate, so it works for whatever GST percentage applies to your situation.
Can I use GST Calculator on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.