Adult, 18+
Under 18
Pregnant or breastfeeding
Standard ranges
South Asian, Chinese, other Asian, Middle Eastern, Black African or Caribbean background
Height (cm)
Weight (kg)
Waist (cm), optional
BMI = weight (kg) ÷ height (m)². Waist-to-height ratio = waist ÷ height. Both are estimates and screening tools, not a diagnosis.