Privacy Policy
Last updated: 9 November 2026
Who we are
AllUnitConversions.com is an independent website operated by Miguel Coelho in the United Kingdom. For any privacy question or request, email support@allunitconversions.com.
The short version
- You do not need an account, and we do not ask for your name or email to use any tool.
- Conversions run in your browser. We do not store the values you type.
- We use Google Analytics and Microsoft Clarity to understand how the site is used. Both set cookies and process technical data such as your IP address, device and pages viewed.
- When advertising is enabled, Google AdSense and its partners may use cookies to show and measure ads.
Information we collect
Analytics (Google Analytics 4)
Google Analytics records pages viewed, approximate location (derived from your IP address), browser, device, referring site and interactions such as completing a conversion, swapping units, copying a result or downloading a chart. It sets cookies named _ga and _ga_* that last up to two years. Read how Google uses information from sites that use its services.
Session insights (Microsoft Clarity)
Microsoft Clarity records clicks, scrolling and page interactions so we can find usability problems. It may set cookies such as _clck, _clsk, CLID, ANONCHK, MR, MUID and SM. Text typed into input fields is masked. See the Microsoft Privacy Statement.
Preferences stored on your device
Settings such as decimal places, date format and your chosen tool pack are saved in your browser's local storage and are not sent to us. If you save the aviation tools for offline use, page files are cached on your device by a service worker. You can clear both from your browser settings at any time.
Emails you send us
If you email us, we use your address and message only to reply, and delete the correspondence when it is no longer needed.
Server logs
Our hosting provider, Vercel, processes request data (IP address, user agent, requested URL) to deliver pages and protect the service from abuse.
Advertising (Google AdSense)
We may show ads served by Google AdSense. When ads are shown:
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website and other websites.
- Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the internet.
- You can opt out of personalised advertising in Google Ads Settings, or opt out of some third-party vendors' use of cookies at aboutads.info and youronlinechoices.eu.
- Visitors in the UK, EEA and Switzerland are asked for consent through a Google-certified consent message before personalised ads or advertising cookies are used.
Why we process data (legal bases)
We process analytics and session data on the basis of our legitimate interest in keeping the tools accurate, fast and usable, and, where the law requires it, on the basis of your consent. Advertising cookies for personalised ads are used only with consent where consent is required.
Sharing and international transfers
We do not sell personal data. Data is shared only with the service providers named above (Google, Microsoft and Vercel), which may process it outside the UK under their own safeguards, such as standard contractual clauses.
How long data is kept
Google Analytics data is retained for 14 months. Clarity recordings are kept for up to 30 days and aggregated heatmaps for up to 13 months. Emails are deleted when no longer needed.
Your rights
Under UK and EU data protection law you can ask to access, correct or delete personal data, object to or restrict processing, and withdraw consent at any time. Email support@allunitconversions.com. You can also complain to the UK Information Commissioner's Office (ico.org.uk) or your local data protection authority. See our cookie policy for how to control cookies.
Children
The site is a general reference tool and is not directed at children under 13. We do not knowingly collect their personal data.
Changes to this policy
When this policy changes we update the date at the top of this page and note material changes here.