Privacy Policy

Last updated: 05/05/2026

This Privacy Policy explains how CalculatorsBox (“we,” “us,” “our,” or “the site”), accessible at https://calculatorsbox.com, collects, uses, and protects information when you visit and use our site.

We are based in Portugal. Where applicable, we comply with the General Data Protection Regulation (GDPR) (Regulation (EU) 2016/679).

Who we are and how to reach us

CalculatorsBox is operated as an independent project. For any privacy-related questions, requests, or concerns, you can contact us at:

Email: contact@calculatorsbox.com

For privacy purposes, this is our point of contact (the “data controller” under GDPR).

What information we collect

Information you provide

Contact form submissions. When you fill in the contact form, we collect the information you provide (typically your name, email address, and the contents of your message) so we can reply to you.

Information collected automatically

When you visit the site, our hosting provider and standard web technologies automatically collect:

Technical data: IP address, browser type and version, device and operating system, pages visited, referring website, date and time of visit. This information is used for security, troubleshooting, and basic site analytics.

Calculator inputs

The calculators on this site run entirely in your browser. Numbers and values you enter into them are not sent to our servers and are not stored anywhere by us.

Analytics (when enabled)

We may use a privacy-respecting analytics service (such as Google Analytics 4) to understand how visitors use the site. When enabled, these services may collect aggregated information about page visits, device type, approximate location, and how you interact with the site.

If we use analytics that rely on cookies or similar technologies, they will only be activated after you give your consent through our cookie banner.

Advertising (when enabled)

We may display ads on the site through Google AdSense. Google may use cookies and similar technologies to serve ads based on your visit to this and other websites. These ad-related cookies will only be set after you give your consent through our cookie banner.

You can learn more about how Google uses your data at: https://policies.google.com/technologies/partner-sites

Cookies and similar technologies

We use cookies and similar technologies on the site. Cookies are small text files stored on your device that help websites remember information about your visit.

We group cookies into the following categories:

Strictly necessary — essential for the site to function (for example, remembering your cookie consent choice or your light/dark theme preference). These do not require consent.
Analytics — help us understand how the site is used. Set only after you accept them.
Advertising — used by Google AdSense and partners to deliver relevant ads. Set only after you accept them.

You can manage your cookie preferences at any time through the Cookie Settings link in the site footer, or by clearing your browser’s cookies. For full details, see our Cookie Policy.

Why we process your data and on what legal basis

Under GDPR, we need a lawful basis for processing your personal data. Depending on the activity, our basis is:

Purpose	Legal basis
Replying to messages you send via the contact form	Performance of a request you made / our legitimate interest in answering you
Maintaining server logs for security and troubleshooting	Our legitimate interest in keeping the site secure and functional
Analytics (when enabled)	Your consent
Advertising cookies (when enabled)	Your consent
Storing your theme and consent preferences in your browser	Strictly necessary for the site to function as you’ve configured it

Who has access to your data

We do not sell, rent, or trade your personal data to third parties.

We may share data with the following service providers, strictly to operate the site:

Hostinger — our hosting provider, which stores the site and processes server logs.
Google — when Google Analytics and/or Google AdSense are active and you have given consent.

These providers act as data processors and are bound by their own privacy obligations.

Data transfers outside the EEA

Some of our service providers (such as Google) may process data outside the European Economic Area, including in the United States. When this happens, transfers are protected by appropriate safeguards such as the EU-U.S. Data Privacy Framework or Standard Contractual Clauses approved by the European Commission.

How long we keep your data

Contact form messages: kept only as long as needed to handle the conversation, usually no more than 12 months, then deleted.
Server logs: typically retained by Hostinger for a short period (commonly 30–90 days) for security and troubleshooting.
Analytics data: retained according to the analytics provider’s settings (we will configure the shortest reasonable retention).
Cookies: vary by cookie. See the Cookie Policy for individual durations.

Your rights

If the GDPR applies to you, you have the following rights regarding your personal data:

Right of access — to know what data we hold about you.
Right to rectification — to have inaccurate data corrected.
Right to erasure — to have your data deleted (“right to be forgotten”).
Right to restrict processing — to limit how we use your data.
Right to data portability — to receive your data in a portable format.
Right to object — to object to processing based on legitimate interests, or to direct marketing.
Right to withdraw consent — at any time, where we rely on consent.
Right to lodge a complaint — with the Portuguese data protection authority, the Comissão Nacional de Proteção de Dados (CNPD): https://www.cnpd.pt

To exercise any of these rights, email us at contact@calculatorsbox.com. We will respond within 30 days.

Security

We take reasonable technical and organizational measures to protect personal data against loss, misuse, and unauthorized access. However, no method of transmission over the internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

Children

The site is not directed at children. We do not knowingly collect personal data from children under 16. If you believe a child has provided us with personal data, please contact us and we will delete it.

Changes to this Privacy Policy

We may update this Privacy Policy from time to time. The “Last updated” date at the top will reflect when the most recent changes were made. Significant changes will be highlighted on the site. Continued use of the site after changes are posted constitutes acceptance of the revised policy.

Contact

For any questions about this Privacy Policy or how we handle your data:

Email: contact@calculatorsbox.com