Free fitness calculators — BMI, Body Fat, Calories & Age
Quick, private calculations right in your browser. No data is saved or sent unless you submit the contact form.
Calculators
BMI Calculator
Body Fat (US Navy)
Calorie (TDEE) Calculator
Age Calculator
About Us
HealthTools is a lightweight, privacy-first set of fitness calculators built to help you make quick decisions. Calculations run entirely in your browser — we do not collect or store results unless you choose to submit them through the contact form.
Built with simple HTML, CSS and JavaScript. Use it, modify it, and host it freely.
Contact Us
Have feedback or want help integrating this tool? Send a message and we'll get back to you.
Privacy Policy
This site runs calculations locally in your browser. We do not store or transmit calculation inputs or results. If you submit the contact form, your name and email are sent using the method you connect on your server (example implementations are not included). If you plan to deploy publicly, update the contact submission to point to your server or a trusted third-party form service and ensure you have a GDPR/CCPA-compliant workflow if applicable.
This privacy text is a template; please replace with your legal policy suited to your jurisdiction before using the site commercially.