About This Tool
A free educational resource for BMI and metabolic health.
Our Mission
American BMI Calculator was built to give everyday Americans a fast, honest, and free way to understand two of the most common health metrics: Body Mass Index (BMI) and metabolic age.
We believe useful health tools should be free, simple, and respect your privacy. No signups, no spam, no medical jargon — just clear numbers and plain-English explanations.
What This Tool Is
This tool is:
- ✅ Free to use, no signup required
- ✅ Educational and informational only
- ✅ Based on standard CDC/WHO BMI guidelines
- ✅ Privacy-respecting — runs entirely in your browser
This tool is NOT:
- ❌ Medical advice
- ❌ A diagnosis or treatment recommendation
- ❌ A substitute for evaluation by a physician
- ❌ Affiliated with any clinic or health system
Editorial & Medical Review
Content on this site is written for general audiences and reviewed by the Editorial Team — a practicing hospitalist physician — to ensure clinical accuracy aligns with current CDC, WHO, and American College of Sports Medicine guidelines. This site is not a substitute for personalized medical advice.
Your Privacy
The calculator runs entirely in your browser. Your weight, height, age, and other inputs are never sent to our servers. See our full Privacy Policy for details on cookies and analytics.