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Body Mass Index (BMI) is an individual weight divided by a height square in meters into kilograms. High body fatness may be shown by a high BMI. Weight category screens for BMIs that can contribute to health concerns, but do not determine a person’s physical fitness or health.


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!

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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 among 35-39.99 called as Obese Class 2:

Experts show that the risk of weight-related health problems and even mortality is serious if you fall within this range. Consult your MEDICAL PRO promptly for an ideal range of weights.

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 underweight:

You can be starved and develop if you are underweight:

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

BMI for Teenagers And Children:

The Body Mass Index is referred to as an age and sex index for children and adolescents. Note that the BMI percentile results for children and adolescents.

Try the percentile BMI calculator for your teen and kids to find CDC growth charts. Test it in percentile categories. Note that BMI ranges for adults (women and men) will remain the same throughout their lifetime, while these statistics differ in children as youngsters continue to grow at various rates.

Let’s look at this graph of BMI to get a good notion of percentiles:

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How to Calculate My BMI by utilizing this Calculator?

You need to know all of the values in the body mass index calculator if you want to know Bmi for adults, men, and women, children, and teenagers.

Calculate Adult men and women BMI:


First of all, you have to select the men’s and women’s adults’ options on a tab.

Next, select the men’s option if you want to estimate the men’s body mass index.

You must then input your height into the calculator box, whether it is feet and inches (ft.-in) or centimeters (cm)

You can now put in this instrument your weight in pounds (lbs.) or kilograms (in pounds)


This adult BMI calculator for males and females generates once you have entered the above fields:

  • Your BMI
  • Body mass index grading of weight
  • In which category do you belong to BMI
  • Why BMI issues
  • Sanitary range BMI
  • Specific index
  • BMI Chart & Table

This calculator allows you to measure tail at height, and not only is Body Mass Index the factor to check your general condition after you have achieved the result.

Calculate Teens and Kids BMI:


First, you need to select the ‘Child & Teen’ option from the field of this tool; you need to then select the ‘Boy’ if you want to calculate boy and child BMI; select ‘Girl’ for children and girls if you want to calculate boy/teen girls. Next, you need to put the ‘age’ in a given field.


  • Once all these fields have been filled, this BMI calculator generates:
  • Your children and teens BMI • BMI percentiles for age
  • In which category you are BMI Percentiles
  • Healthy Range of weight
  • Percentile of BMI

BMI Charts:

Have a look at these charts for the best understanding of BMI percentages.

BMI Chart for Men and women (Adult) :

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BMI Chart for Boys (Kids and teens):

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BMI Chart for girls (Kids & Teens):

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Explain BMI percentile and its interpretation method?

Once BMI is computed as “percentile” for teenagers and young people, it does not matter if the graph or calculator for children and teenagers is used. These percentiles are measurements reported about US children by a child’s BMI; they are taken in the 1963-65 through 1988-94 domestic surveys. Optimistic research shows that changes in weight and height are linked to body fatness during growth and development. The body mass index of a child should therefore be regarded as compared to other children of the same age and gender.

Let shows the percentile growth diagram of BMI for Age :

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Limitations of the BMI (possibilities):

BMI is considered a valuable tool in order to determine a healthy weight, although experts have shown its reliability is dubious. Note that BMI is not a reliable measure when it comes to analyzing body fat!

The overall nutritional status index assesses corresponding to the height and weight ratio. But nobody fat or muscular mass is mentioned.

Also, BMI is no difference between water weight, bone weight, etc.

BMI is not a particular person’s sex. For example, the body mass index of males and females is the same, although males have more muscle mass and females have more fat mass not included in the BMI diagram.

Food balance and healthy weight activity:

Good nutrition and proper physical activity are part of a healthy lifestyle. The calories you eat from food and the calories you burn from physical activity will be balanced if your body weight hasn’t altered for several months. Consider adjusting the pattern and level of physical exercise to attain your aim if you are to acquire or lose weight

Nutrition and food:

Calories are not needed all the time, but it can be helpful at first to determine the number of calories in foods and drinks that you eat regularly. Calories will counteract to see how many calories you need a day for your age, sex, height, weight, and physical activities to maintain your current weight. Click on the result to see the daily amounts recommended for the caloric calorie level for fruit, vegetables, protein, milk, and grain.

Type in the foods you eat and drink and the calories you drink each day, to learn how many calories you take in. Check for the size and number of calories in the nutrition fact label and take portion size into account. A food journal helps you to understand what you are eating. Each day and for the length of your time, begin to write down your physical activities.

Healthy weight gain: Nutrition for Health

Meal preparation:

A weight management food plan includes a variety of healthful foods. Add a range of hues and think of it as rainbow eating. The vitamins, fiber, and minerals of dark, leafy greens, oranges, and tomatoes — even fresh herbs. Increases the color and nutrients quickly and conveniently using frozen peppers, broccoli, or onions in stews and omelets.

A healthy eating plan is laid down in the dietary guidelines:

Emphasizes fruit, vegetables, whole grains, and milk and milk products that are fat-free and low fat

Includes a range of protein sources such as meats, meat, and poultry, eggs, legumes, soy products, nuts, and seeds.

Is low in lipids, trans fats, cholesterol, salt, and added sugars

Stays in your everyday calories


Fruit is good, fresh, frozen, or canned. Try fruits beyond bananas and apples like mango, an apple, and kiwi fruit. Try a frozen, canned, or dry kind when fresh fruit is not in season. Keep in mind that dried and canned fruits may include added sugar or syrup. Choose canned fruit varieties packed with water or juice. Prepared meal containers with broccoli noodles, carrots, rice, or soba


Serve with a herb, such as a rosemary, in grilled or cooked veggies. Also, sauté (panfry) vegetables with a little cooking spray in a non-stick pot. Or try a simple side dish, heat and serve, frozen or canned vegetables. Look for canned plants with no additional salt, butter, or cream sauces. Try a new veggie every week for the variety.

Calcium-rich foods:

Consider low-fat and fat-free yogurts without adding sugar, in addition to low-fat and low-fat milk. These come in several different tastes and might be a nice option for dessert.


Try to make healthier changes when baking or grilling if your favorite dish asks for frying fish or pan chicken. Try dry beans instead of meats. Perhaps. Asking friends and looking for fewer calorie recipes on the internet and magazines, you may uncover a new favorite food surprising to see!

Comfort Foods:

Healthy food is about equilibrium. Even when they are high in calories, fat, or added sugar, you can enjoy your favorite dish. The idea is to consume them just once in a while and balance them with more healthy food and fitness.

Tips for convenience foods:

  • Eat less frequently. Cut down to once a week or once a month, if you eat these items usually every day.
  • Eat lower quantities. You can use a lesser size or merely half a bar to get the beloved high-calorie food.
  • Try a variation with a lesser calorie. Use ingredients with reduced calories or prepare food differently. Try making it with non-iodized Milk, less butter, fatty cheese, fresh spinach, and tomatoes, for example, if your macaroni and cheese recipe includes whole milk, butter, and full-fat cheese. Remember that your portion does not increase.

Final words:

The online calculator does not claim that the given information is accurate or that the results from the above BMI calculator are obtained. The results of this tool are simply estimates for educational purposes. The data provided by this tool are not meant to replace MEDICAL professional advice, diagnosis, and treatment.

Frequently Asked Questions

You can look at the CDC BMI interpreting chart above or you can discover the usual range using the above math.

In every woman, the BMI measurements differ, use the above calculator to know yours!

The Specific Index It is believed that corpulence index is a measure of a person’s leanness determined as a ratio between mass and height. The first suggested “corpulence measure” by Swiss physician Fritz Rohrer was the 1921 Rohrer Index.

Firstly, there are no precise characteristics of good BMI, each one has various ranges! Plugin the above calculator settings, you simply know your optimal or healthy range!

Optimistic research reveals that an unhealthy BMI is linked to obesity-related health concerns. You should see your doctor for greater and better health goals.

Note that keeping a healthy BMI works, sticking to the following guidelines, whether you are a newbie or on your way, doesn’t matter.
  • At least 60 to 90 minutes per week most days 
  • Stay hydrated and eat a balanced diet.
  • If your range is not where the caloric intake needs to be reduced and your exercise increased,

It’s time to call a healthcare physician if your BMI score comes outside a healthy range. In order to reach your health objectives, you may also need to see your dietitian.

The extent of your physical activity depends mainly on your age.
  • Children aged 3 to 5 should be physically active for development and growth throughout the day.
  • Children and young people (6 to 17 years of age) require daily physical exercise of moderate to strong intensity for 60 or more minutes. Children and young people need aerobic activity to build their muscles and bone.
  • Pregnant or postpartum women should do moderate aerobic physical exercise per week, such as swift footing, for at least 150 minutes with their doctor’s consent. This activity should be spread across the week, like 30 minutes a day five times a day.
  • Anaerobic activity and muscle-building activity are required of adults every week for 150 minutes of physical activity. It can take thirty minutes a day and five days a week.
  • Adults ages 65 and over need moderate-intensity activity at least 150 minutes per week, such as quick walking, at least two days per week for work that strengthens muscles, and works such as standing on one foot to enhance balance.