Synthvora Growth

Free Tool

Sales Tax Calculator

Add GST, VAT, or sales tax to any price and see the exact total.

$110.00

Formula used

Total = Price x (1 + Tax% / 100)

Tax amount = Total - Price. Preset buttons cover common GST, HST, and VAT rates.

How to use your results

Common rates

One tap presets for AU GST 10%, NZ GST 15%, CA GST 5%, Ontario HST 13%, and UK VAT 20%.

Four countries

Built for the USA, Canada, Australia, and New Zealand. Type any custom rate you need.

Reverse check

To find the pre-tax price from a total, divide the total by (1 + rate/100).

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Preview

Sales Tax Calculator tool preview
Live preview of the Sales Tax Calculator tool running in your browser. Your data never leaves your device.