Short version: HeightFast runs entirely in your browser. The heights, ages and weights you enter never leave your device, and we don’t collect them on our servers.
Everything on this device
All conversions, percentiles and BMI calculations happen locally in JavaScript. We do not receive, store or sell your height, age, weight, sex or any other information you enter.
Cookies and analytics
We use a small cookie to remember your cookie-banner choice and aggregated, anonymous analytics (like page views) to understand how the converter is used. None of it identifies you or contains your measurements.
Third-party advertising
Advertising may appear through third-party networks that can use their own cookies to show relevant ads. Those networks follow their own privacy policies.
Your control
Clear your cookies or use private browsing at any time. Because we store no personal data, there is nothing further for you to request from us.
Contact
Privacy questions? Use the contact page.