BMI Body Mass Index US (imperial) Online Calculator / Chart / Table
BMI Body Mass Index
US (Imperial Units) Online Calculator

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

Select imperial (US) or metric units: Imperial        Metric

Enter your height,
ft, in (feet, inches)
ft        in

Enter your weight,
lb (pounds):          

Rounding options:

Daily Calorie Intake Calculator  BMI Calculator (Metric)

Category Chart / Table
BMI ( body mass index ) Category Chart / Table: Example BMI for a person with height = 5 ft 3 inch :
Severely underweight less than 16.5
Underweight body from 16.5 to 18.4
Normal body from 18.5 to 24.9
Overweight body from 25 to 30
Obesity (Class I) from 30.1 to 34.9
Obesity (Class II) from 35 to 40
Obesity (Class III) over 40
92 lb at 5′3″ = 16.30
100 lb at 5′3″ = 17.71
120 lb at 5′3″ = 21.25
160 lb at 5′3″ = 28.34
190 lb at 5′3″ = 33.65
220 lb at 5′3″ = 38.97
260 lb at 5′3″ = 46.05

Body mass index (BMI) is a body weight (in kg) divided by the square of his height (in meters, metric) and measured in kg/m2. There is a corrective coefficient 703 used In order to calculate the index in imperial units (inches and pounds). BMI is used to find a normal person's body weight (so called healthy weight) based on a person's height. BMI 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 (also called Quetelet index) was invented by Adolphe Quetelet (a Belgian scientist and mathematician) in 19th century (between years 1830 and 1850).

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