BMI Calculator

BMI Calculator

  • metric units
  • other units
Age  ages: 2 – 120
Gender Male   Female

Reading: BMI Calculator

Weight pounds
Height centimeter
Weight kilogram


BMI = 23 kg/m2 ( Normal ) 161718.525303540UnderweightNormalOverweightObesityBMI = 23

  • Healthy BMI range: 18.5 kg/m2 – 25 kg/m2
  • Healthy weight for the height: 128.9 lbs – 174.2 lbs
  • Ponderal Index: 12.9 kg/m3

The Body Mass Index ( BMI ) Calculator can be used to calculate BMI value and corresponding burden condition while taking long time into consideration. Use the “ Metric Units ” yellow journalism for the International System of Units or the “ other Units ” pill to convert units into either US or metric function units. eminence that the calculator besides computes the Ponderal Index in summation to BMI, both of which are discussed below in detail .

BMI introduction

BMI is a measurement of a person ‘s leanness or corpulence based on their stature and weight, and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy torso weight for their acme. specifically, the rate obtained from the calculation of BMI is used to categorize whether a person is scraggy, normal slant, corpulence, or corpulent depending on what range the value falls between. These ranges of BMI vary based on factors such as region and age, and are sometimes far divided into subcategories such as sternly scraggy or very sternly corpulent. Being fleshy or scraggy can have significant health effects, indeed while BMI is an imperfect measure of healthy body system of weights, it is a utilitarian indicator of whether any extra screen or action is required. Refer to the table below to see the different categories based on BMI that are used by the calculator .

BMI table for adults

This is the World Health Organization ‘s ( WHO ) recommended soundbox weight based on BMI values for adults. It is used for both men and women, long time 18 or older .

Category BMI range – kg/m2
Severe Thinness < 16
Moderate Thinness 16 – 17
Mild Thinness 17 – 18.5
Normal 18.5 – 25
Overweight 25 – 30
Obese Class I 30 – 35
Obese Class II 35 – 40
Obese Class III > 40

BMI chart for adults

This is a graph of BMI categories based on the World Health Organization datum. The dash lines represent subdivisions within a major classification .

BMI table for children and teens, age 2-20

The Centers for Disease Control and Prevention ( CDC ) recommends BMI categorization for children and teens between historic period 2 and 20 .

Category Percentile Range
Underweight <5%
Healthy weight 5% – 85%
At risk of overweight 85% – 95%
Overweight >95%

BMI chart for children and teens, age 2-20

The Centers for Disease Control and Prevention ( CDC ) BMI-for-age percentiles growth charts .
Chart for boys
Chart for girls

Risks associated with being overweight

Being corpulence increases the risk of a numeral of unplayful diseases and health conditions. Below is a list of said risks, according to the Centers for Disease Control and Prevention ( CDC ) :

  • High blood pressure
  • Higher levels of LDL cholesterol, which is widely considered “bad cholesterol,” lower levels of HDL cholesterol, considered to be good cholesterol in moderation, and high levels of triglycerides
  • Type II diabetes
  • Coronary heart disease
  • Stroke
  • Gallbladder disease
  • Osteoarthritis, a type of joint disease caused by breakdown of joint cartilage
  • Sleep apnea and breathing problems
  • Certain cancers (endometrial, breast, colon, kidney, gallbladder, liver)
  • Low quality of life
  • Mental illnesses such as clinical depression, anxiety, and others
  • Body pains and difficulty with certain physical functions
  • Generally, an increased risk of mortality compared to those with a healthy BMI

As can be seen from the list above, there are numerous negative, in some cases fatal, outcomes that may result from being overweight. Generally, a person should try to maintain a BMI below 25 kg/m2, but ideally should consult their doctor to determine whether or not they need to make any changes to their life style in order to be healthier .

Risks associated with being underweight

Being scraggy has its own associate risks, listed below :

  • Malnutrition, vitamin deficiencies, anemia (lowered ability to carry blood vessels)
  • Osteoporosis, a disease that causes bone weakness, increasing the risk of breaking a bone
  • A decrease in immune function
  • Growth and development issues, particularly in children and teenagers
  • Possible reproductive issues for women due to hormonal imbalances that can disrupt the menstrual cycle. Underweight women also have a higher chance of miscarriage in the first trimester
  • Potential complications as a result of surgery
  • Generally, an increased risk of mortality compared to those with a healthy BMI

In some cases, being scraggy can be a sign of some implicit in condition or disease such as anorexia nervosa, which has its own risks. Consult your doctor of the church if you think you or person you know is scraggy, particularly if the reason for being scraggy does not seem obvious .

Limitations of BMI

Although BMI is a wide used and utilitarian indicator of goodly body weight, it does have its limitations. BMI is merely an estimate that can not take body composition into account. Due to a wide variety show of body types deoxyadenosine monophosphate well as distribution of muscle, bone mass, and fat, BMI should be considered along with other measurements rather than being used as the sole method acting for determining a person ‘s healthy torso weight .
In adults:
BMI can not be fully accurate because it is a bill of surfeit consistency slant, preferably than excess body adipose tissue. BMI is further influenced by factors such as age, sex, ethnicity, muscleman mass, and body fat, and bodily process level, among others. For case, an older person who is considered a healthy slant, but is wholly inactive in their day by day life may have significant amounts of surfeit body fatten even though they are not heavy. This would be considered unhealthy, while a younger person with higher brawn musical composition of the same BMI would be considered healthy. In athletes, particularly bodybuilders who would be considered fleshy due to muscle being heavier than fat, it is entirely potential that they are actually at a healthy weight for their body composition. broadly, according to the CDC :

  • Older adults tend to have more body fat than younger adults with the same BMI.
  • Women tend to have more body fat than men for an equivalent BMI.
  • Muscular individuals and highly trained athletes may have higher BMIs due to large muscle mass.

In children and adolescents:
The same factors that limit the efficacy of BMI for adults can besides apply to children and adolescents. additionally, acme and flat of sexual growth can influence BMI and body fatten among children. BMI is a better index of surfeit body fat for corpulent children than it is for fleshy children, whose BMI could be a solution of increased levels of either fat or nonfat mass ( all body components except for fat, which includes water, organs, muscle, and so forth ). In sparse children, the difference in BMI can besides be due to nonfat mass .
That being said, BMI is reasonably indicative mood of body fatty for 90-95 % of the population, and can efficaciously be used along with other measures to help determine an individual ‘s healthy soundbox weight .

BMI formula

Below are the equations used for calculating BMI in the International System of Units ( SI ) and the US customary arrangement ( USC ) using a 5’10 ”, 160-pound individual as an exercise :

USC Units:

BMI = 703 × 
mass (lbs)
height2 (in)
= 703 × 
= 22.96 

SI, Metric Units:

BMI = 
mass (kg)
height2 (m)
 =  22.90

Ponderal Index

The Ponderal Index ( PI ) is exchangeable to BMI in that it measures the meagerness or corpulence of a person based on their stature and burden. The main difference between the PI and BMI is the cubing preferably than squaring of the altitude in the convention ( provided below ). While BMI can be a utilitarian creature when considering large populations, it is not authentic for determining meagerness or corpulence in individuals. Although the PI suffers from similar considerations, the PI is more reliable for function with very grandiloquent or inadequate individuals, while BMI tends to record uncharacteristically gamey or humble body fatten levels for those on the extreme ends of the height and weight spectrum. Below is the equality for computing the PI of an individual using USC, again using a 5’10 ”, 160-pound individual as an exemplar :

USC Units:

PI = 
height (in)
∛ mass ( pound )
∛ 160

 = 12.89
∛ pound

SI, Metric Units:

PI = 
mass (kg)
height3 (m)
 = 12.87
reference :
Category : How To

Related Posts

Leave a Reply

Your email address will not be published.