Free BMI Calculator
Berechnen Sie Ihren Body-Mass-Index und erfahren Sie Ihre Gewichtskategorie.
Frequently Asked Questions
Is the BMI-Rechner free to use?
Yes, the BMI-Rechner on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the BMI-Rechner work?
Berechnen Sie Ihren Body-Mass-Index und erfahren Sie Ihre Gewichtskategorie. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the BMI-Rechner?
No installation needed. The BMI-Rechner runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the BMI-Rechner?
Completely safe. The BMI-Rechner processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the BMI-Rechner work offline?
After the page loads for the first time, the BMI-Rechner works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or WHOIS lookups) require an active connection.
How accurate are the BMI-Rechner calculations?
The BMI-Rechner uses clinically validated formulas such as the Mifflin–St Jeor or Harris–Benedict equations where applicable. Results are population-based estimates. Consult a qualified healthcare professional before making medical or dietary decisions.