BMI, body surface area and resting metabolic rate
Body mass index, body surface area and basal metabolic rate from height, weight and age. Population formulas, not medical advice.
- Body mass index
- BMI category
- Body surface area
- Basal metabolic rate
Body mass index
BMI22.86weight in kg ÷ (height in m)²
CategoryHealthy weightthe WHO adult cut-offs; they do not distinguish muscle from fat, and differ for children, athletes and some ethnic groups
Healthy weight range for this height56.7–76.3 kg
Height175 cm5.74 feet
Weight70 kg154.3 lb, 11.02 stone
Body surface area
Du Bois formula1.8481 m²0.007184 × height^0.725 × weight^0.425
Mosteller formula1.8447 m²√(height × weight ÷ 3600)
Why it is usedDrug dosing and cardiac output are scaled by surface area, not weight
Basal metabolic rate
Mifflin-St Jeor (male)1,649 kcal/day
Mifflin-St Jeor (female)1,483 kcal/day
At rest onlyAdd activity to estimate daily needssedentary ≈ ×1.2, moderately active ≈ ×1.55, very active ≈ ×1.9
These are population formulasIndividual rates vary by 10% or more either waynot medical advice; a clinician measures rather than estimates