Privacy Policy

We never sell your personal information to third parties. Your calculator inputs are processed entirely in your browser and are not transmitted to or stored on our servers.

We do not require an account to use the calculator. The Mifflin St Jeor Calculator tools run client-side, meaning the values you enter (age, weight, height, etc.) remain on your device.

We use cookies that are strictly necessary for the site to function, along with advertising cookies from Google AdSense and other third-party vendors (see Advertising below). You can manage or disable cookies through your browser settings at any time.

We use privacy-respecting analytics to understand aggregate usage — which pages are visited and general performance. This data is anonymized and not linked to your identity or your calculator inputs.

This site may display ads served by Google AdSense and other third-party advertising vendors. These vendors, including Google, use cookies (such as the Google DoubleClick cookie) to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the internet. You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of third-party vendor cookies generally at aboutads.info.

Our articles may link to external websites for reference. We are not responsible for the privacy practices of those sites and encourage you to review their policies.

Mifflin St Jeor Calculator is not directed at children under 13, and we do not knowingly collect information from children. The calculator is intended for use by adults.

Depending on your jurisdiction (e.g., GDPR, CCPA), you may have rights to access, correct or delete personal data. Because we do not store your calculator inputs, there is generally no personal data to delete — but you may contact us regarding any analytics or correspondence data.

We may update this policy from time to time. Material changes will be reflected by updating the 'last updated' date at the top of this page. Continued use of the site constitutes acceptance of the revised policy.

All content and tools on Mifflin St Jeor Calculator are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making decisions about your diet, exercise or health.