Calculate your Body Mass Index (BMI)

The Body Mass Index (BMI) is a statistical measurement which compares a person's weight and height. Though it does not actually measure the percentage of body fat, it is an useful tool to estimate a healthy body weight based on how tall a person is.

1 - Type your weight in kilograms
2 - Type your height in centimeters
3 - Click on the button "calculate".

This or any other web-based body calculator can provide an estimate only. Although this estimate may help you determine more appropriate behaviors, it should not be used for important decisions affecting your health or like a substitute for qualified medical assessment and advice.

 Calculate your Body Mass Index
weight (kg) height (cm) sex BMI
BMI weighted by difference female body
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Calculate your Ideal body weight
  weight in kg height in cm ideal weight  
  lowest weight highest weight kilograms to lose  
To calculate the ideal weight has been used as a reference a BMI (body mass index) of 22, which represents the average value of a standar BMI, between the values of 18.5 and 25.
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measurement in inches and pounds     versione italiana
Calculation of BMI, Body Mass Index, in graphic format
Pubblicazioni INRAN, Istituto Nazionale
di Ricerca per gli Alimenti e la Nutrizione
  Reference Tables of BMI
The Body Mass Index is defined as the individual's body mass divided by the square of their height. The formulae universally used in medicine produce a unit of measure of kg/m2. It's used to assess the weight of a person. If the BMI increases, also increases the risk of diseases associated to excess weight, especially diabetes and cardiovascular disease. The below classification applies to both men and women of Caucasian ethnicity, aged between 18 and 65 years. The definitions are used by the WHO, the World Health Organization, as an international standard.
Categoryrange BMI - kg/m
Severe underweight< 16.5
Underweightda 16,5 a 18,4
Normalda 18,5 a 24,9
Overweightda 25 a 30
Class I Obesityda 30,1 a 34,9
Class II Obesityda 35 a 40
Class III Obesity> 40
Adults Women Men
anorexia < 17.5
underweight <19.1 <20.7
in normal range 19.1-25.8 20.7-26.4
marginally overweight 25.8-27.3 26.4-27.8
overweight 27.3-32.3 27.8-31.1
very overweight or obese >32.3 >31.1
severely obese 35 - 40
morbidly obese 40 - 50
super obese 50 - 60
Median Body Mass Index values for Women
Age 20-29 30-39 40-49 50-59 60-69
Median BMI 24.4 26.4 27.8 28.4 27.5
Median Body Mass Index values for Men
Age 20-29 30-39 40-49 50-59 60-69
Median BMI 24.5 25.9 26.8 27.2 27.0