Privacy Policy | BMI Calculator UK

Last Updated: May 2026

Welcome to BMI Calculator UK ("we", "our", or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains what information we collect, how we use it, and what rights you have in relation to it.

1. Information We Collect

Health Data: The height and weight inputs you enter into the BMI calculator are processed locally within your web browser. We do not transmit, collect, or store this health data on our servers. Once you close the browser or refresh the page, the data is gone.

Automatically Collected Information: Like many websites, we automatically collect certain information when you visit, use, or navigate the site. This information does not reveal your specific identity but may include device and usage information, such as your IP address, browser and device characteristics, operating system, language preferences, referring URLs, and information about how and when you use our site.

2. How We Use Your Information

We use the automatically collected information for the following purposes:

To facilitate and improve the delivery of our website.
To protect our website from malicious activity (e.g., spam, DDoS attacks).
To analyze user trends via aggregated, anonymized analytics to improve the user experience.

3. Cookies and Tracking Technologies

We may use cookies and similar tracking technologies (like web beacons and pixels) to access or store information. We strictly limit the use of cookies to essential functional cookies and non-intrusive analytics cookies (such as Google Analytics). You can manage your cookie preferences through your browser settings.

4. Third-Party Services

We may use third-party analytics services (e.g., Google Analytics) to help us understand how users engage with the site. These services may collect information sent by your browser, including cookies and your IP address. This data is aggregated and does not personally identify you.

5. Data Security

We have implemented appropriate technical and organizational security measures designed to protect the security of any personal information we process. However, despite our safeguards, no internet transmission is 100% secure, so we cannot guarantee absolute security.

6. GDPR and Your Rights (UK & EEA Users)

If you are a resident in the European Economic Area (EEA) or the United Kingdom (UK) and you believe we are unlawfully processing your personal information, you also have the right to complain to your local data protection supervisory authority. Because we do not store your personal calculator data, requests for data deletion or access generally apply only to correspondence (e.g., if you email us).

7. Updates to This Policy

We may update this privacy notice from time to time. The updated version will be indicated by an updated "Last Updated" date and the updated version will be effective as soon as it is accessible. We encourage you to review this privacy notice frequently.

8. Contact Us

If you have questions or comments about this policy, you may email us at support@bmicalculatoruk.org.