Privacy policy
Last updated: July 30, 2026.
Data controller
CalcularLitros is operated by Jaime Castillo in Spain. Privacy inquiries and rights requests can be sent to info@calcularlitros.com. Visitors do not need an account or personal details to use the calculator.
Measurements entered in the calculator
Dimensions are processed inside the browser to produce the result. They are not sent to the operator or stored in an operator-managed database. Hosting and technical providers may process IP address, browser, device, date, requested page and security log information.
Email inquiries
When you send an email, your email address, message and any details you choose to provide are used to reply, manage the conversation, investigate the reported issue and prevent abuse. Please do not send sensitive information. Messages are retained only as long as reasonably needed for the inquiry and related responsibilities.
Analytics and advertising
Google Analytics 4, measurement ID G-5WDC2NX8V9, provides audience statistics. Google AdSense delivers and measures advertising. A single Google-certified consent management platform communicates the applicable consent signals to these services.
Legal grounds
Essential operation and site protection rely on the legitimate interest in providing a safe service. Email data is used to answer the sender’s request. Analytics, advertising personalization and non-essential storage rely on consent where consent is required.
Providers and international transfers
Hosting services, Google and the advertising technology providers named inside the consent platform may process data. Some processing may involve international transfers under the safeguards used by the relevant provider. The current provider list is available through the privacy settings.
Your rights
Where applicable, you may request access, correction, deletion, restriction, objection or portability and may withdraw consent without affecting earlier processing. Email info@calcularlitros.com with a clear request. You may also complain to the Spanish Data Protection Agency or your competent supervisory authority.
Changes and children
The service is not intended to deliberately collect children’s personal information. This notice will be revised if providers, purposes or site functions materially change. The date above identifies the current version.
How Google uses advertising information
Third-party vendors, including Google, may use cookies or equivalent technologies to deliver and measure ads. Advertising cookies allow Google and its partners to serve ads based on previous visits to this or other sites, subject to the visitor’s privacy choice and applicable law.
You can review or opt out of personalized advertising through Google Ads Settings. You can also use the opt-out choices offered by participating third-party vendors. The site’s consent platform lists the relevant vendors and purposes before a decision is made.
Interaction data never includes measurements
With valid consent, the site may record interaction categories such as a completed calculation, validation error, copied result, language change, or guide-to-calculator visit. Only limited labels such as locale, shape, unit, and error category are accepted. Entered dimensions, calculated results, email addresses, and full URLs containing parameters are not sent.