Privacy Policy

1. Introduction

Welcome to CalculateMyBMI.net (“we,” “us,” or “our”). We are committed to protecting your privacy and ensuring that your personal information is handled responsibly and transparently. This Privacy Policy describes how we collect, use, disclose, and safeguard your information when you visit our website at https://calculatemybmi.net (the “Site”), including all associated subpages, calculators, guides, and related services.

By accessing or using the Site, you acknowledge that you have read, understood, and agree to be bound by this Privacy Policy. If you do not agree with the terms outlined herein, please discontinue use of the Site immediately.

2. Information We Collect

2.1 Information You Provide

Our BMI calculators require you to input certain data, including height, weight, age, and biological sex. However, this information is processed exclusively on your device using client-side JavaScript. None of this data is transmitted to our servers, stored in any database, or shared with any third party. Once you close or refresh the page, the data you entered is discarded entirely.

If you choose to contact us via email at info@calculatemybmi.net, we will collect the information you voluntarily provide, such as your name, email address, and the contents of your message. This information is used solely to respond to your inquiry and is not shared with third parties.

2.2 Automatically Collected Information

When you visit the Site, certain information is collected automatically through standard web technologies. This may include:

• IP Address: Your Internet Protocol address, which may be used to approximate your general geographic location (city or region level).
• Browser Type and Version: Information about the web browser you are using (e.g., Chrome, Firefox, Safari) and its version number.
• Operating System: The operating system running on your device (e.g., Windows, macOS, iOS, Android).
• Device Information: General information about the device you use to access the Site, such as device type (desktop, tablet, mobile) and screen resolution.
• Referring URLs: The web address of the page that linked you to our Site.
• Pages Visited: Which pages on our Site you view, the order in which you view them, and the duration of each visit.
• Date and Time of Access: Timestamps associated with your visits to the Site.
• Language Preferences: The language settings configured in your browser.

2.3 Cookies and Tracking Technologies

We use cookies and similar tracking technologies to collect and store certain information when you visit the Site. Cookies are small text files placed on your device by your web browser. They help us understand how visitors interact with the Site, remember your preferences, and deliver relevant advertising content. For detailed information about the specific cookies we use, please see Section 4 of this policy.

3. How We Use Your Information

We use the information we collect for the following purposes:

• To Operate and Maintain the Site: Ensuring the Site functions correctly, loading pages efficiently, and maintaining the security and integrity of our services.
• To Improve the User Experience: Analyzing usage patterns to understand how visitors interact with our calculators and content, enabling us to improve the design, functionality, and content of the Site.
• Analytics and Performance Monitoring: Using aggregated and anonymized data to monitor the Site’s performance, identify technical issues, measure traffic trends, and evaluate the effectiveness of our content.
• To Serve Advertisements: We use Google AdSense to display advertisements on the Site. Google and its advertising partners may use cookies and similar technologies to serve ads based on your prior visits to our Site or other websites. This helps support the free availability of our calculators and guides.
• To Respond to Inquiries: If you contact us, we use the information you provide to address your questions, feedback, or concerns.
• To Comply with Legal Obligations: We may process your information to comply with applicable laws, regulations, legal processes, or enforceable governmental requests.

4. Cookies and Similar Technologies

The Site uses cookies and similar technologies for several purposes. Below is a detailed breakdown of the types of cookies we use:

4.1 Essential Cookies

These cookies are strictly necessary for the Site to function properly. They enable core functionality such as page navigation, access to secure areas, and remembering your unit system preferences (metric or imperial). Without these cookies, the Site cannot function as intended. Essential cookies do not collect personal information and cannot be disabled.

4.2 Analytics Cookies (Google Analytics 4)

We use Google Analytics 4 (GA4) to understand how visitors use the Site. GA4 collects information about page views, session duration, bounce rates, traffic sources, geographic regions, and device types. This data is aggregated and anonymized where possible, meaning it does not personally identify individual visitors. GA4 uses first-party cookies to distinguish unique users and sessions.

Google Analytics may transfer data to servers in the United States. Google’s use of this data is governed by Google’s Privacy Policy. You may opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

4.3 Advertising Cookies (Google AdSense)

We use Google AdSense to display advertisements on the Site. Google AdSense uses cookies to serve ads based on your interests. These cookies enable Google and its certified advertising partners to serve advertisements to you based on your visits to the Site and other websites across the internet. This is known as interest-based or personalized advertising.

Google’s use of advertising cookies is governed by Google’s Advertising Policies. You may opt out of personalized advertising by visiting Google Ads Settings. Additionally, you may opt out of third-party vendor cookies for personalized advertising by visiting www.aboutads.info.

4.4 How to Manage and Disable Cookies

You have the right to control and manage cookies. Most web browsers allow you to manage cookie preferences through their settings. You can typically find these settings in the “Options,” “Preferences,” or “Settings” menu of your browser. Common actions include:

• Viewing existing cookies: See which cookies are stored on your device.
• Deleting cookies: Remove some or all stored cookies.
• Blocking cookies: Configure your browser to block cookies from specific or all websites.
• Receiving notifications: Set your browser to notify you when a cookie is being placed.

Please note that disabling or blocking certain cookies may affect the functionality of the Site and may prevent certain features from working correctly.

5. Third-Party Services

We engage certain trusted third-party service providers to assist us in operating and improving the Site. These third parties may have access to certain automatically collected information, subject to their own privacy policies.

5.1 Google Analytics

We use Google Analytics 4, a web analytics service provided by Google LLC (“Google”). Google Analytics uses cookies and similar technologies to collect and analyze information about the use of our Site. The information generated is transmitted to and stored by Google on servers that may be located in the United States. Google uses this information to evaluate your use of the Site, compile reports on website activity, and provide other services relating to internet usage. For more information, please refer to Google’s Privacy Policy.

5.2 Google AdSense

We use Google AdSense, an advertising service provided by Google LLC, to display advertisements on the Site. Google AdSense may use cookies, web beacons, and similar technologies to collect information about your visits to our Site and other websites in order to provide advertisements about goods and services that may be of interest to you. For more information about how Google uses data from sites that use its services, please visit How Google Uses Information from Sites That Use Its Services. You can review Google’s Advertising Policies for additional details.

5.3 Content Delivery Networks (CDNs)

We may use content delivery networks to serve static assets such as stylesheets, fonts, and images efficiently. CDNs operate by distributing content across multiple geographically dispersed servers, which may result in your browser making requests to servers outside your country of residence. CDN providers may collect standard server log information, including IP addresses and request metadata, subject to their respective privacy policies.

5.4 Web Hosting Provider

Our Site is hosted by a third-party hosting provider that maintains the servers on which the Site is stored. Our hosting provider may collect standard server logs as described in Section 2.2. The hosting provider processes this data on our behalf and in accordance with our instructions and applicable data protection agreements.

6. Data Retention

We retain information only for as long as necessary to fulfill the purposes described in this Privacy Policy, unless a longer retention period is required or permitted by law.

• Server Logs: Standard web server logs, including IP addresses, browser information, and page access records, are retained for a maximum of 30 days and are then automatically deleted.
• Calculator Data: Data entered into our calculators (height, weight, age, sex) is never stored on our servers. This data exists only temporarily in your browser’s memory during your session and is discarded when you close or navigate away from the page.
• Analytics Data: Data collected by Google Analytics is retained in accordance with Google’s data retention settings. We have configured our GA4 property to retain user-level data for 14 months, after which it is automatically deleted.
• Email Correspondence: If you contact us via email, we retain your correspondence for as long as necessary to resolve your inquiry and for a reasonable period thereafter for record-keeping purposes, typically no longer than 12 months.

7. Your Rights

Depending on your location and applicable data protection laws, you may have certain rights regarding your personal information. We are committed to honoring these rights to the greatest extent possible.

7.1 Rights Under the General Data Protection Regulation (GDPR)

If you are a resident of the European Economic Area (EEA), the United Kingdom, or Switzerland, you have the following rights under the GDPR:

• Right of Access: You have the right to request a copy of the personal data we hold about you.
• Right to Rectification: You have the right to request that we correct any inaccurate or incomplete personal data.
• Right to Erasure (“Right to Be Forgotten”): You have the right to request the deletion of your personal data, subject to certain exceptions.
• Right to Restriction of Processing: You have the right to request that we limit the processing of your personal data under certain circumstances.
• Right to Data Portability: You have the right to receive your personal data in a structured, commonly used, and machine-readable format, and to transmit that data to another controller.
• Right to Object: You have the right to object to the processing of your personal data for direct marketing purposes or where we are processing your data based on our legitimate interests.
• Right to Withdraw Consent: Where we rely on your consent for processing, you have the right to withdraw that consent at any time without affecting the lawfulness of processing carried out prior to withdrawal.

The legal bases for our processing of personal data under the GDPR include: your consent (for analytics and advertising cookies), our legitimate interests (for operating and improving the Site), and compliance with legal obligations.

7.2 Rights Under the California Consumer Privacy Act (CCPA)

If you are a California resident, you have the following rights under the CCPA and the California Privacy Rights Act (CPRA):

• Right to Know: You have the right to request information about the categories and specific pieces of personal information we have collected about you, the sources from which it was collected, the business or commercial purpose for collecting it, and the categories of third parties with whom we share it.
• Right to Delete: You have the right to request the deletion of personal information we have collected from you, subject to certain exceptions.
• Right to Opt-Out of Sale or Sharing: You have the right to opt out of the “sale” or “sharing” of your personal information. We do not sell personal information in the traditional sense; however, the use of advertising cookies may constitute “sharing” under the CCPA. You can opt out of personalized advertising as described in Section 4.4.
• Right to Non-Discrimination: You have the right not to receive discriminatory treatment for exercising any of your CCPA rights.
• Right to Correct: You have the right to request correction of inaccurate personal information.

7.3 How to Exercise Your Rights

To exercise any of the rights described above, please contact us at info@calculatemybmi.net. We will respond to your request within 30 days (or within the timeframe required by applicable law). We may ask you to verify your identity before processing your request to protect your privacy and security. Please note that given the limited amount of personal data we collect, we may not hold identifiable information about you beyond standard server logs.

8. Children’s Privacy

The Site is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. Our Pediatric BMI Calculator is designed as a tool for parents, guardians, and healthcare professionals to assess the BMI of children and adolescents. The calculator processes all data client-side, and no personal data about the child is collected, stored, or transmitted to our servers.

If we become aware that we have inadvertently collected personal information from a child under 13 without verified parental consent, we will take immediate steps to delete that information. If you believe we have collected personal information from a child under 13, please contact us immediately at info@calculatemybmi.net.

For users in the European Economic Area, this age threshold applies to children under the age of 16, or such lower age as may be provided by applicable member state law (no lower than 13).

9. International Data Transfers

The Site is operated from servers that may be located in various countries. If you access the Site from outside the country where our servers are located, your information may be transferred across international borders. By using the Site, you consent to the transfer of your information to countries that may have different data protection laws than your country of residence.

Where we transfer personal data from the EEA, the United Kingdom, or Switzerland to countries that have not been deemed to provide an adequate level of data protection, we rely on appropriate safeguards such as Standard Contractual Clauses approved by the European Commission, or other legally recognized transfer mechanisms, to ensure your data is protected in accordance with this Privacy Policy and applicable data protection laws.

Our third-party service providers, including Google (for Analytics and AdSense services), may also process data internationally. Google’s data transfer practices are governed by their own privacy policies and applicable data processing agreements.

10. Security Measures

We take the security of your information seriously and implement reasonable technical and organizational measures to protect the data we collect against unauthorized access, alteration, disclosure, or destruction. Our security practices include:

• HTTPS Encryption: All data transmitted between your browser and the Site is encrypted using SSL/TLS (Secure Sockets Layer / Transport Layer Security) protocols, ensuring that information cannot be intercepted in transit.
• Client-Side Processing: Calculator inputs are processed entirely in your browser and are never transmitted to our servers, eliminating the risk of server-side data breaches for your health measurements.
• Regular Updates: We regularly update our Site’s software and dependencies to patch known security vulnerabilities.
• Access Controls: Access to server infrastructure and administrative tools is restricted to authorized personnel only, using strong authentication mechanisms.
• Data Minimization: We collect only the minimum amount of data necessary to operate the Site and provide our services.

While we strive to protect your information, no method of transmission over the internet or method of electronic storage is completely secure. We cannot guarantee absolute security, but we are committed to continually improving our security practices to safeguard your data.

11. Changes to This Privacy Policy

We reserve the right to update or modify this Privacy Policy at any time to reflect changes in our practices, technologies, legal requirements, or other factors. When we make changes, we will update the “Effective Date” and “Last Updated” date at the top of this page.

We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information. For material changes that significantly affect how we process your personal data, we will make reasonable efforts to provide prominent notice on the Site prior to the changes taking effect.

Your continued use of the Site following the posting of changes to this Privacy Policy constitutes your acceptance of those changes. If you do not agree with the updated Privacy Policy, you should discontinue your use of the Site.

12. Contact Information

If you have any questions, concerns, or requests regarding this Privacy Policy, our data practices, or your privacy rights, please do not hesitate to contact us:

We aim to respond to all inquiries within 30 days. If you are a resident of the European Economic Area and believe that our processing of your personal data infringes upon your rights under the GDPR, you have the right to lodge a complaint with your local data protection supervisory authority.