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BMI
Underweight Healthy Overweight Obese
1 kg = 2.2 lb · 1 st = 6.35 kg · 1 ft = 30.5 cm
Weight
kg
st
Height
cm
ft
Age
Optional — for context
yrs
⚠️

Not medical advice. BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, age, ethnicity, or fat distribution. People with the same BMI can have very different health profiles. If you're concerned about your weight, speak to your GP or call NHS 111.