Privacy Policy
Last updated: October 20, 2026
Your calculator inputs
All calculations on SimpleFitCalc run locally in your web browser using JavaScript. The numbers you type — such as age, weight, height or body measurements — are not sent to our servers, not saved, and not shared. Closing or reloading the page clears them.
Information collected automatically
Like most websites, our hosting provider (Vercel) may process standard technical data, such as your IP address, browser type and the pages requested, to deliver and secure the site. This is described in Vercel's own privacy policy.
Cookies, analytics and advertising
The site does not currently use advertising or analytics cookies. We may add them in the future to keep the site free. If we do, we will update this policy. Third-party vendors, including Google, may use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies (for example, through Google AdSense) enables it and its partners to serve ads based on your visits. You can opt out of personalized advertising at Google Ads Settings or learn more at aboutads.info. Where required by law, we will ask for your consent before setting non-essential cookies.
Children
SimpleFitCalc is intended for adults and is not directed to children under 13. We do not knowingly collect personal information from children.
Links to other sites
Our pages link to external sources such as PubMed, the CDC and the WHO. Their privacy practices are their own.
Changes and contact
We may update this policy and will change the date above when we do. Questions: Contact us.