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Privacy Policy

Last updated: April 2025

Convert Units Lab ("we", "us", "our") operates convertunitslab.com. This policy explains what information we collect, how we use it, and your rights regarding your data.

What We Collect

We collect minimal data to operate the site:

• Usage data — standard web analytics including pages visited, time on site, browser type, and approximate location (country/city level). This is collected automatically by our hosting provider and analytics tools.
• Conversion history — your recent conversions are stored locally in your browser using localStorage. This data never leaves your device and is not transmitted to our servers.
• No account data — we do not require you to create an account. We do not collect names, email addresses, or any personally identifiable information.

Cookies

This site uses cookies in the following ways:

• Analytics cookies — used to understand how visitors use the site (pages visited, session duration). These are anonymous and do not identify you personally.
• Advertising cookies — once advertising is enabled on this site, Google AdSense will place cookies to show relevant advertisements. These cookies may track your browsing activity across other websites to personalise ads. You can opt out of personalised advertising at google.com/settings/ads.

Most browsers allow you to control cookies through their settings. Disabling cookies may affect some site functionality.

How We Use Data

• To understand how people use the site so we can improve it
• To display relevant advertisements (once advertising is enabled)
• To ensure the site is working correctly

We do not sell your data to third parties. We do not use your data for any purpose other than those listed above.

Third-Party Services

We use the following third-party services which have their own privacy policies:

• Google Analytics — website analytics. Google Privacy Policy
• Google AdSense — advertising (once enabled). Google Privacy Policy

Hosting

This site is hosted on Cloudflare Pages. Cloudflare may collect standard server logs including IP addresses and request data as part of their infrastructure services. This data is processed by Cloudflare in accordance with their privacy policy at cloudflare.com/privacypolicy.

AI-Generated Explanations

Some pages on this site use Anthropic's Claude API to generate contextual explanations for conversions. When an AI explanation is requested, the conversion details (value, units, and context type) are sent to Anthropic's API. No personally identifiable information is included in these requests. This data is processed by Anthropic in accordance with their privacy policy available at anthropic.com/privacy.

Your Rights

Depending on your location, you may have the right to:

• Access the personal data we hold about you
• Request deletion of your data
• Opt out of personalised advertising
• Lodge a complaint with your local data protection authority

Since we collect no personally identifiable information, most of these rights are satisfied by default. Your local conversion history can be cleared at any time by clearing your browser's localStorage.

Children

This site is not directed at children under 13. We do not knowingly collect data from children under 13.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated date. Continued use of the site after changes constitutes acceptance of the updated policy.