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Body Mass Index (BMI)

The severity of your obesity is determined by a measurement of your Body Mass Index (BMI). Enter your weight and height in the calculator below(in either imperial or metric) to find out what your current BMI is and what effect losing some or all of your excess weight will have.

BMI Calculator


Weight	st	lb	=	kg
Height	ft	in	=	m
BMI = NaN kg/m²

For your height, the upper limit of your ideal weight range is:
0kg (0st 0lbs), BMI = 25 kg/m²

BMI Definitions	BMI (kg/m²)
Underweight	< 18
Healthy weight	18 - 25
Overweight	25 - 30
Obese	30 - 35
Severely obese	35 - 40
Morbidly obese	40 and over

Body Mass Index (BMI)

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