Privacy Policy
Last updated: 31 July 2026
BMI Calculator is published by M4Quick LLC. This policy explains what information is collected when you use this site, how it is used, and what choices you have.
The calculator runs entirely in your browser. The height and weight you enter are used to perform the arithmetic on your own device and are never transmitted to us, never stored, and never logged. Closing the page discards them.
The only way to send us personal information directly is by emailing us. If you do, we receive your email address and whatever you choose to include, and we use it solely to reply and act on your message. We do not add you to mailing lists and we do not sell or share it.
Like most websites, our hosting and advertising providers automatically receive standard technical information when a page is requested — browser type, device type, approximate location derived from IP address, and referring page. We use this only in aggregate.
This site displays advertising served by Google, and Google's advertising products use cookies and similar technologies. Specifically:
You can also block or delete cookies through your browser settings. See our cookie policy for the breakdown.
We may use basic analytics to understand aggregate site usage. This data is aggregated, does not identify you personally, and never includes anything you type into the calculator.
Depending on where you live, you may have rights to access, correct or delete personal information a site holds about you. Because we maintain no user accounts and the calculator stores nothing, in most cases we hold no personal information about you beyond any email correspondence. If you have emailed us and would like that deleted, contact us.
This site is intended for adults and is not directed at children under 13. Adult BMI categories do not apply to children and teenagers, who are assessed on age- and sex-specific percentile charts by a paediatric provider.
We may update this policy as the site changes. The "last updated" date above reflects the current version.
For privacy questions, reach us via our contact page.
Privacy enquiries can also be posted to M4Quick LLC, 440 Monticello Ave Ste 1802 PMB 574599, Norfolk, Virginia 23510-2670 US, though email reaches us considerably faster.