Privacy Policy

1. Who we are

FreeCalcLab (freecalclab.com) is a free online calculator and converter site, available in Spanish and English. This policy explains what data is handled when you use the site.

2. Data we do not collect

We do not ask for registration, accounts, names, email addresses or payment details. All calculations run in your own browser: the values you type into the calculators are not sent to any server.

3. Local storage and shared links

The site stores preferences in your browser (local storage), such as language, light or dark theme, and your cookie choice. When you share a calculation, the values travel inside the link you choose to send; they are not stored on our servers.

4. Cookies and third-party advertising

The site may show advertising served by Google AdSense. Google and its partners use cookies to serve ads based on your prior visits to this or other websites.

• Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and other sites on the Internet.
• You can opt out of personalized advertising at Google Ads Settings.
• You can also opt out of other vendors' cookies at www.aboutads.info/choices.

On your first visit you can accept or reject non-essential cookies from the cookie notice. Your choice is stored in your browser and you can change it by clearing the site's data.

5. Technical data

Like any website, the server delivering the pages logs standard technical data (IP address, browser type, requested pages) for security and operation purposes. We do not use these logs to identify you.

6. Children

The site is not directed at children under 13 and does not knowingly collect data from children.

7. Changes to this policy

We may update this policy when the site's tools or legal requirements change. The date of the latest revision appears at the top of this page.