Cookie Policy
What cookies and similar technologies this site uses, and how to control them.
Last updated: 5 September 2026
What Cookies Are
Cookies are small text files that a website asks your browser to store on your device. They are widely used to make sites work, to remember preferences, and to measure and deliver advertising. Similar technologies such as local storage and pixels serve comparable purposes, and this policy covers those too.
Notably, the conversion tools on Unit Converter do not need cookies at all. Every calculation runs in your browser, so blocking cookies entirely will not stop any converter from working.
Cookies Used on This Site
| Category | Purpose | Set by | Typical duration |
|---|---|---|---|
| Strictly necessary | Keep the site secure and functioning. These do not identify you personally and cannot be switched off. | This site / hosting provider | Session |
| Preferences | Remember lightweight choices made in your browser, such as a dismissed notice. Stored locally on your device only. | This site | Until cleared |
| Analytics | Measure how many people visit, which converters are used, and how visitors move through the site, in aggregate. | Google Analytics 4 | Up to 2 years |
| Advertising | Serve advertisements, limit how often you see the same ad, measure ad performance, and where consented, personalise the ads shown. | Google AdSense / DoubleClick | Up to 2 years |
Durations are the maximum set by the provider; actual lifetimes are controlled by Google and may change. We do not control the names or lifetimes of third-party cookies.
Third-Party Cookies in Detail
Google AdSense
Advertising cookies are set by Google and its partners on the domains googlesyndication.com, doubleclick.net and related Google domains. They are used to serve ads, cap ad frequency, detect invalid traffic, and — only where you have consented, or where local law permits — to personalise the advertisements you see.
Google Analytics
Analytics cookies are set by Google Analytics 4 and are used to distinguish visitors and sessions so that we can report aggregate statistics. They do not tell us who you are.
Your Choices
Consent
Where required by law — including in the European Economic Area, the United Kingdom and Switzerland — advertising and analytics cookies are only set after you have given consent. You can review or change your choice at any time on our Consent Preferences page.
Browser controls
Every major browser lets you block or delete cookies. These pages explain how:
Advertising opt-outs
- Google Ads Settings — control personalisation across Google services.
- aboutads.info/choices — industry opt-out (United States).
- youronlinechoices.eu — industry opt-out (Europe).
- Google Analytics Opt-out Add-on.
Blocking advertising cookies does not remove advertisements; it means the advertisements you see will be non-personalised, based on general context rather than your browsing history.
Changes to This Policy
We may update this Cookie Policy as the services we use change. The "Last updated" date at the top of this page indicates when it was last revised. Related information is available in our Privacy Policy.