Cookie policy
Last updated 17 October 2026.
This page explains the cookies and similar technologies used on ozcalcs.com. A cookie is a small text file a website saves in your browser.
What we use
| Name or type | Set by | Purpose | Lasts |
|---|---|---|---|
| Theme preference (local storage) | OzCalcs | Remembers if you chose light or dark mode | Until you clear it |
| Security cookies | Cloudflare | May be set to protect the site from bots and attacks | Up to 30 minutes |
| Advertising cookies | Google and its partners | Show ads, limit how often you see them, measure them, and, where allowed, personalise them | Varies, up to about 13 months |
Our visitor statistics come from Cloudflare Web Analytics, which doesn't use cookies. Our calculators don't use cookies, and what you type isn't stored.
Advertising cookies
We use Google AdSense to keep OzCalcs free. Google and other ad vendors use cookies to serve ads based on your previous visits to this and other websites. Read how Google uses cookies in advertising.
Visitors from the European Economic Area, the UK and Switzerland are asked for consent before advertising cookies are used for personalised ads.
How to control cookies
- Turn off personalised ads in Google Ads Settings.
- Opt out of some third-party vendors at aboutads.info.
- Block or delete cookies in your browser settings. The site will still work, but ads may be less relevant.
More information
See our privacy policy, or email [email protected] with any questions.