About BMIHero
We make health
screening simple.
BMIHero is a free, private, and science-backed BMI calculator built for everyone — from curious individuals to health professionals. No sign-up. No ads. No data collection.
Our Mission
"To give every person on the planet instant access to accurate, evidence-based health screening tools — completely free, in any language, in any unit system."
Who We Are
BMIHero was built by a small team of health-tech enthusiasts who noticed a problem: most online BMI calculators are cluttered with ads, require registration, harvest personal data, or simply return an inaccurate result. We set out to fix that.
We're not a hospital, a clinic, or a medical company. We're software developers and health advocates who believe that understanding your own health metrics should be frictionless. Our tool is completely free, runs in your browser, and never sends your data to a server.
Our BMI calculator is used by adults, parents checking their child's growth, athletes, fitness coaches, and healthcare students worldwide. It supports both metric (kg and cm) and imperial (lbs, feet, and inches) — because health information shouldn't have borders.
What We Stand For
Speed & Simplicity
Your BMI result in under one second. No clutter, no ads, no distractions — just the answer you came for.
Scientific Accuracy
We follow WHO and CDC guidelines for BMI categories, healthy ranges, and age-specific interpretations for children.
Radical Transparency
We explain what BMI is, what it can tell you, and — importantly — what it cannot. No false promises.
Privacy First
All calculations happen in your browser. We never collect, store, or share your height, weight, or health data.
Medical Disclaimer
BMIHero is an educational and informational tool only. The content on this website, including BMI calculations, category classifications, and health range information, is provided for general informational purposes and does not constitute medical advice.
BMI is a screening tool — not a diagnostic instrument. Your BMI result should not be used to self-diagnose or replace a consultation with a qualified healthcare professional. If you have concerns about your weight or health, please speak with your doctor.
Get in Touch
Have a question, suggestion, or found a bug? We'd love to hear from you.
Contact Us