BMI Children & Teens Body Mass Index
(BMI for kids is calculated differently)
Metric BMI Calculator (cm & kg)
Body Mass Index (BMI) FAQS
What is Body Mass Index (BMI)?
Body Mass Index, or BMI, is a tool doctors use to identify potential weight problems in adults, by comparing an individual's BMI to the rest of the population. It is based only on your height and weight, and so is an easy screening tool. Although it is an indirect measurement, it has been shown to correlate closely in most cases to more direct measurements of body fat.
What Does My Body Mass Index (BMI) Mean?
Use your BMI to determine whether you are at a healthy weight. The chart below gives the ranges for underweight, normal weight, overweight and obese. If you find yourself in any category besides "normal" you should consult your doctor about ways to improve your health.
Standard BMI tables apply only to adults age 20 and older. The weight categories do not depend on age or gender. ( See the BMI Children & Teens Calculator for kids)
BMI |
Weight
Status |
Below
18.5 |
Underweight |
18.5 –
24.9 |
Normal |
25.0 –
29.9 |
Overweight |
30.0 and
Above |
Obese |
The Body Mass Index (BMI) Formula - How to Calculate BMI
Units |
BMI Formula and Calculation |
pounds and inches |
BMI = 703 x weight (lb) ÷ [height (in)]2
Calculate BMI by dividing
weight in pounds by height in inches squared and
multiplying by a conversion factor of 703. Example: Weight = 150 lbs, Height = 5’5” (65")
Calculation: 703 x [150 — (65)2] = 24.96 |
kilograms and meters
|
BMI = weight (kg) ÷ [height (m)]2 With the metric system,
BMI equals weight in kilograms divided by height in
meters squared. If height is measured in
centimeters, divide height in centimeters by 100 to obtain
height in meters.
Example: Weight = 68 kg, Height = 165 cm (1.65 m)
Calculation: 68 — (1.65)2 = 24.98 |
Is Body Mass Index (BMI) Reliable?
Although there is a strong correlation between body fat and the BMI calculation, there are some other considerations to take into account:
For a given BMI, women usually have more body fat than men, and older adults have more than younger people.
Althletes sometimes have a high BMI because of increased muscle mass.
Also, waist circumference is an important measurement since abdominal fat is a risk-factor for obesity-related diseases.
What Are the Health Risks Associated with Obesity?
Being obese or overweight increases your risk of:
Stroke
Type 2 diabetes
Some cancers (endometrial, breast, and colon)
Coronary heart disease
Hypertension (high blood pressure)
Gallbladder disease
Osteoarthritis
Sleep apnea and respiratory problems
Dyslipidemia (high LDL cholesterol, low HDL cholesterol,
or high levels of triglycerides)
WIth all of these potential health problems associated with being overweight, body mass index (BMI) can be an important tool in assessing health risks.
Lose Weight with Easy Portion Control
Dish Diet dishware is a new, specially designed set of portion control plates & bowls that simplifies losing weight. Learn More - Click here
Copyright 2008-2019 by Dish Diet, Inc. All Rights Reserved Worldwide.
MEDICAL DISCLAIMER - The information on this website is provided for your personal information only. Dish Diet, Inc. and DishDiet.com do not provide medical advice. Please consult your physician or health care provider before beginning any diet or exercise program. ( More --> )