BMI calculator
Work out your body mass index and see the weight range that is healthy for your height.
About this calculator
BMI is your weight in kilograms divided by your height in metres squared. A BMI from 18.5 to 24.9 is usually called a healthy weight, under 18.5 underweight, 25 to 29.9 overweight and 30 or more obese.
BMI is only a rough guide. It does not know about muscle, age or body shape, so talk to a doctor or nurse about what is right for you.
Common questions
Can I use stone and pounds?
Yes. Switch the units to imperial and enter feet, inches, stone and pounds.
Is BMI accurate for everyone?
Not always. Athletes and older people can get misleading results.
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