# Bmi Calculator Online

## What is Body Mass Index (BMI) ?

The Body Mass Index (BMI) is a calculated value of a person based on his/her mass (weight) and height, the universal unit of BMI is KG/M2.

This web app for BMI calculator checks the height and weight in cm and kg respectively for metric type also for imperial type (US/UK Units) its uses pound, feet, and inch. So this BMI calculator us or uk both units are calculated. Our BMI calculator unit is KG/M2

This BMI calculator used as bmi calculator for men,bmi calculator for women and bmi calculator for children.

The main objective of BMI calculation is to measure the height to weight ratio and assess whether the current weight is healthy or unhealthy.

KG/M2
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### BMI Category Table

BMI Category BMI VALUE ( KG/M2)
Underweight Below 18.5
Normal Between 18.5 - 25
Obese Between 25 - 30
Overweight Above 30

The ideal BMI value of an adult is in the range between 18.5 to 25 KG/M2

#### BMI Calculator Formula

The BMI is extensively shown in kg/m2, it is producing from mass in kilograms and height in meters. If pounds and inches are used, a conversion factor of 703 (kg/m2)/(lb/in2) needs to be applied.

Metric Units BMI = Weight (kg) / Power (height (cm)) 2 * 10000

US/UK Units BMI = Weight (lb) / ((Height (in) + 12.0 * Height (ft)) * (Height (in) + 12.0 * Height (ft))) * 703

##### History of BMI BMI was designed to be used as a pure means of listing inactive communities, with average body composition. BMI gives a simple numeric example of a person's thickness or thinness, allowing health professionals to discuss weight problems more accurately with their patients.

Adolphe Quetelet, a Belgian scientist devised the principle of the BMI between 1830 and 1850 as he developed what he called "social physics". The current term "body mass index" (BMI) for the ratio of human body weight to squared height was issued in a paper written in the July 1972 publication of the Journal of Chronic Diseases by Ancel Keys and others. In this article, Keys claimed that what he termed the BMI was "...if not fully satisfactory, at least as good as any other relative weight index as an indicator of comparative obesity".