BMI Body Mass Index Metric Calculator Online calculator converter
Online calculator - converter: BMI Body Mass Index Metric Calculator
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BMI Body Mass Index
Metric Calculator

This calculator provides calculation of BMI (Body Mass Index) in metric (m, kg) or US imperial units (ft, in, lb).

Select metric or imperial (US standard) units:

Metric        Imperial (US standard)

Enter your height,
cm (centimeters)


Enter your weight,
kg (kilograms):

Rounding options:

Daily Calorie Intake Calculator       BMI Calculator US (Imperial)

BMI Category Table

BMI ( body mass index, kg/m2 ) Category Table:
Severely underweight BMI less than 16.5 BMI
Underweight body BMI from 16.5 to 18.4 BMI
Normal body BMI from 18.5 to 24.9 BMI
Overweight body BMI from 25 to 30 BMI
Obesity (Class I) BMI from 30.1 to 34.9 BMI
Obesity (Class II) BMI from 35 to 40 BMI
Obesity (Class III) BMI over 40 BMI
Example BMI for a person with height = 1.7 meters :
body weight 47 kg at 170 cm = 16.26 BMI
body weight 50 kg at 170 cm = 17.30 BMI
body weight 60 kg at 170 cm = 20.76 BMI
body weight 80 kg at 170 cm = 27.68 BMI
body weight 95 kg at 170 cm = 32.87 BMI
body weight 110 kg at 170 cm = 38.06 BMI
body weight 130 kg at 170 cm = 44.98 BMI

BMI (body mass index) is the person's body weight (in kilograms) divided by the square of his height (in meters) and measured in kg/m2. There is a need to use corrective coefficient In order to calculate the index in imperial units. BMI is used to estimate a normal body weight (a healthy body weight) based on a person's height. It's also called Quetelet index, is a measurement which estimates a proportion of person's weight and height. Body mass index is often used as diagnostic index to identify if individual is obese, overweight, normal or underweight. BMI was invented by Adolphe Quetelet (a Belgian scientist) between years 1830 and 1850.
Sample conversion: Somebody has weight 80 kilograms and is 170 centimeters tall - the BMI is going to be 27.68 after the calculator is used (Overweight body according the reference table).

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