Comprehensive Medical BMI Calculator

Advanced BMI, BMR & TDEE analysis

Dual BMR Formulas Multiple Scales

Medical-grade: WHO standard, Asian BMI, and Singapore scales with Mifflin-St Jeor & Harris-Benedict formulas.

This comprehensive BMI calculator provides medical-grade body composition analysis including Body Mass Index (BMI), Basal Metabolic Rate (BMR) using both Mifflin-St Jeor and Harris-Benedict formulas, and Total Daily Energy Expenditure (TDEE). Get precise unit conversions, multiple BMI classification scales, and complete metabolic breakdowns for fitness and medical applications.

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Understanding BMI

Body Mass Index (BMI) is a medical screening tool that measures body fat based on height and weight.

BMI Categories:

Underweight< 18.5

Normal18.5 - 24.9

Overweight25.0 - 29.9

Obese≥ 30.0

Multiple Scales: Uses WHO, Asian, and Singapore BMI scales for culturally appropriate assessments.

BMR & TDEE Explained

Basal Metabolic Rate (BMR)

Calories your body burns at rest for basic functions like breathing, circulation, and cell production.

Total Daily Energy Expenditure (TDEE)

Your BMR plus calories burned through physical activity and exercise.

Calculation Methods:

✓Mifflin-St Jeor: More accurate for modern populations

✓Harris-Benedict: Traditional formula (1919)

Medical Disclaimer

This calculator provides estimates based on standard formulas. Results may not account for individual variations in metabolism, muscle mass, or medical conditions. Always consult healthcare professionals for personalized advice.