About OzCalc

Everyday calculations, made simple.

OzCalc is an Australian calculator site built around real tools rather than thin pages. Each calculator has live results, a plain-English explanation, a formula, a worked example and sources where the numbers come from official rules.

You do not need an account. Inputs stay in your browser. Favourites and recently used tools are stored on this device only.

The figures are estimates. Tax, super, lending and energy rules are simplified so the method is visible. Check the Australian Taxation Office, your lender or your retailer before you rely on a number.

The site uses Google Analytics and Vercel Analytics for traffic, and Google AdSense Auto ads for support. Ads are not placed inside calculator inputs or results.