FAQs (Frequently Asked Questions)
BMI (Body Mass Index) is a simple calculation that compares your weight to your height
to estimate your general weight category. It is widely used as a basic health indicator.
BMI offers a general overview but is not perfect. It may not be accurate for athletes,
children, older adults, pregnant individuals, or people with high muscle mass.
Standard adult BMI categories:
- Underweight: Below 18.5
- Healthy Weight: 18.5 – 24.9
- Overweight: 25 – 29.9
- Obesity: 30 and above
BMI does not measure:
- Muscle mass
- Bone density
- Body fat
- Age-based differences
- Fitness level
- Medical conditions
Yes. BMI uses the same formula for men and women, although body composition differences
may influence how results are interpreted.
Yes. Children and teens require age- and sex-specific BMI percentiles instead of standard adult ranges.
Some ethnic groups may experience certain health risks at lower BMI values.
BMI does not reflect differences in body composition across all populations.
No. BMIcalculator.dev does not store any BMI values or personal data.
All calculations happen instantly in your browser.
BMI does not measure body fat or fitness level. It is only a screening tool.
For personalized guidance, consult a healthcare professional.
No. BMI is just one factor. Other important measures include body fat percentage,
cholesterol, blood pressure, activity level, and overall lifestyle.
We reference reliable organizations to give users accurate, evidence-based health information.
No. This website provides general, educational information and is not a medical service.
Yes! The site is fast, lightweight, and fully optimized for mobile, tablet, and desktop.