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A clever BMI calculator helps calculate the body weight index number and weight. You can calculate BMI for males, women, teenagers, and children. This calculator can be usual, underweight, overweight, or obese in which group your body mass index will fall in. In this calculator, it is possible to enter your weight in kgs (lbs) or kg and your height in feet, inches, or millimeters for computations.

Read about the Bmi formula, chart, scale, scope, male and female classifications (in adulthood), and children and teens, and much more in this article.

Overview of BMI

A body mass index is called a measurement of leanness or corpulence derived from an individual’s mass (weight) and height. Please note that this value is not directly measuring body fat but is modestly associated with more direct body fat measurements. It is defined as the mass of the body splits by the square of the height of the body and is universally stated in kg/m2, which is the result of mass in kg and height in meters. BMI is calculated to determine if the person is underweight, overweight, or obese. BMI is considered. Remember that your fitness plan may differ in BMI ranges. The more weight you gain, the higher your body mass index will be, but it does not imply that you are obese.

BMI Formula Explanation:

Let’s look at the formula:

BMI Formula (English version):
For Pounds & Inches:


For English measures or the aforementioned BMI calculation, pounds should be separated into inches squared. This is also to be converted from lbs/inches2 Kg/m2 by 703. This is to be done.
BMI Formula (Metric version):
For Kilograms and Meters (or Centimeters):



m=mass(in kilograms)

h=height(in meters)

The equation above shows weight in kilograms and height in square meters. You must divide your height by 100 to translate this to meters if your height was measured in cm (m).
Our computer also evaluates the body mass index using the aforesaid formulas.

Calculation of BMI formula:

Check the example given below
Calculate BMI using English Measurement:
What is my BMI, if:

My weight is 150lbs

My Height is 5′5”(65inches)

Let insert the number into the formula :


Metric Measurement and calculation of BMI:
What’s my BMI, if:

My Height is 165cm(1.65m)

My Weight is 68kg

At that time, add the values of the formula


Generally, you can find out if you are a health danger while determining your body mass index reading.
The same formula is used for the calculation of body mass index for men and women for men and women in our adult BMI calculator.

Calculate BMI’s For a number of Ages:

Our calculator is divided into four major divisions of the population: males and women (adults), children and adolescents. This BMI calculator for body mass index works like this:
Men’s BMI computer: I would like to know what normal men’s BMI is. In the calculator, the age and weight index can be used to compute men’s body mass index according to weight status.
BMI Women’s Calculator: Helps calculate female BMI and reveals if you have a healthy female body mass index or an obese one.
BMI Teenage Calculator: To calculate BMI for adolescents based on clinical growth charts, and to determine if teenage teens are underweight, healthy weight, overweight or obese.
BMI Children’s Calculator: Allow BMI to be calculated for children according to percentile age-dependent on CDC children’s growth charts. CDC BMI Chart for Kids is created by this tool.

How is BMI calculated
For Adults people?

The Body Mass Index is interpreted by conventional weight categories for adults 20 years of age and older. Experts have shown that the BMI scale places you in one of six categories. For adult men and women of all types and ages, these categories for BMI are the same.
Look at the chart you’ve presented!

BMI equal to or less than 18.5 is classified as Underweight:

Perhaps your weight can be too low by means of a lean body mass index. Remember, the lower the spectrum of health dangers your body will be!
BMI in between 18.5 and 24.9 is usually termed under Normal Weight or Healthy weight Range:
Recall the recommended amount of body weight for persons with an IMB between 18.5 and 24.9.

BMI is among 25 and 29.9 known as Overweight:

Note that an overweight range of such a disease increases the danger of many diseases. Recent studies have indicated a higher rate of diabetes, blood pressure, and heart disease in men at 27.8 and in women at 27.3. Try to find your typical range in the following body mass index calculator for men and women! Consult your health care professional when you realize that you are overweight!

BMI is among 30-34.99 called as Obese Class one:

People within this group are susceptible to physical disorders. You should consult your health care professional ideally, in order to achieve a healthy range, and consider reducing your weight by 5 to 10%. This reduction in weight is good to achieve your desired BMI for adults.

BMI is more than 40 called as Obese Class 3 or Morbid Obesity:

Studies have shown that, if an individual has a BMI of 40+, the risk of weight-related diseases and potentially premature mortality is very significant. Consult your doctor for advice based on your body mass index ranges!

Remember these things!

To lower your BMI, you need to keep to a moderate loss of weight procedure, which is 1 to 2 pounds per week. Studies have shown that a quick reduction of weight may lower your muscle rather than your fat. Besides, your possibilities to develop other health issues arise, which include nutrient deficiencies and gallstones. To achieve your weight loss targets, you need to make legitimate longer-term modifications to your diet and stick to physical activity!
Whether you try to lower or keep your weight does not matter; your eating habits should be improved.
The fat intake must be reduced and all milk products and soft drinks avoided. Simply stay with physical activity for at least 30 minutes a day and eat properly for healthy BMIs (normal weight)

Dangers of High BMI
Overweight & Physical Inactiveness:

When you are overweight and physically inactive
with a body mass index of more than 25 kg/m2:

  • Cardiovascular (disease of heart and blood circulation)
  • Disease of the Bile Blood
  • Pressure of the high blood (Hypertension)
  • Diabetes type 2
  • Osteoarthritis
  • Colon and breast cancer types
  • Some mental health and depressive disorders

Dangers of Low BMI or

You can be starved and develop if you
are underweight:

  • Air condition
  • Digestive illness
  • Digestive conditions
  • Cancer
  • Osteoporosis
  • Endangered immune role