BMI Calculator
How it works: BMI (Body Mass Index) is calculated using the formula: weight(kg) / height(m)². It's a screening tool to categorize weight status. Note that BMI doesn't account for muscle mass, bone density, or body composition, so consult a healthcare professional for personalized health advice.
Overview
Calculate your Body Mass Index instantly using our BMI Calculator. Enter your height and weight in either metric or imperial units, and get immediate results showing your BMI score along with your weight category according to WHO standards. The calculator helps you understand whether you're underweight, normal weight, overweight, or obese, providing valuable insights for health and fitness tracking. Perfect for anyone monitoring their weight, setting fitness goals, or working with healthcare providers. The tool uses the standard BMI formula (weight in kg / height in m²) trusted by medical professionals worldwide. All calculations happen instantly in your browser with complete privacy—no data is stored or transmitted. Switch easily between kilograms/centimeters and pounds/inches to match your preference.
About
About BMI Calculator
Calculate your Body Mass Index (BMI) using height and weight. Get instant categorization based on WHO guidelines. Supports both metric (kg/cm) and imperial (lb/in) units for convenience.
Features:
- Calculate BMI instantly
- WHO category classification
- Metric and imperial units
- Visual category indicators
- Reference ranges included
- 100% private - no data stored
FAQ
What ranges do you use?
WHO: underweight <18.5, normal 18.5–24.9, overweight 25–29.9, obese ≥30.
Are results medical advice?
No. BMI is a general indicator; consult a professional for health advice.
Can I switch units?
Yes. Toggle between metric and imperial.