BMI Calculator
BMI Calculations Results
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BMI Calculator
Explanations and Formula
Body mass index(BMI) formula,
BMI = Mass in Kg / (height in Metre) ^ 2
BMI Range according to Centers of Disease Control and Prevention (CDC Definition)
Below 18.5 = Under-weight
18.5 - 24.9 = Normal-weight
24.9 - 29.9 = Over-weight 18.5
and Above = Obese
What is BMI?
BMI is stand for Body Mass Index. It is a numeric value that define the body's tissue content. It is simply the ratio of mass (in Kg) of the body to the square of the body's height (in metre). BMI value is used to categorize person into under weight, normal weight, over weight and obese. Sometime two more categories is used that is extrmely under weight and extremely obese. Beside person's weight and height, sometime, age and gender is also used to calculate bmi. BMI is the commonly accepted index for classifying adiposity in adults and it is recommended for use with children and adolescents.
How BMI depends on age?
Performance of BMI-for-Age As A Screening Tool "The validity of selected cutoff points to identify adolescents with the highest percentage of body fat has been investigated. In general, common cutoff points for BMI and relative weight have low sensitivities but high specificities. For example, BMIs > 85th percentile has a sensitivity of 29% and 23% for identifying adolescent males and females, respectively, who are above the 90th percentile for percentage body fat; corresponding specificities are 99% and 100% (Himes and Bouchard, 1989). In screening for adolescent overweight, specificity may be more important than sensitivity. Maximizing specificity minimizes the proportion of adolescents who will be incorrectly considered overweight by the screen" (Himes and Dietz, 1994). Recently it has been shown that cardiovascular risk factors are associated with the established BMI-for-age cutoffs. Freedman et al., (1999) found that approximately 60% of 5 to 10 year-old children with BMI-for-age values > the 95th percentile had at least one biochemical or clinical risk factor for cardiovascular disease such as hypertension, elevated insulin levels, and hyperlipidemia. Twenty percent of children had two or more risk factors.
what is bmi calculator metric?
BMI calculator metric is that bmi calculator which take weight in Kg and height in meters. Any unit of measurement can be used to calculate bmi. But before putting value in the general formula of bmi, all unit must be converted to metric unit form.
Metric Units:
bmi calculator chart
bmi calculator chart is a table of calculated bmi values. Weight of person is indicated at top in columnswise and heights are indicated at left side of the table. And where height rows and weight column interset in table, it gives its bmi. BMI chart is show below:
All About Obesity and Overweight
facts
- Worldwide obesity has nearly tripled since 1975.
- In 2016, more than 1.9 billion adults, 18 years and older, were overweight. Of these over 650 million were obese.
- 39% of adults aged 18 years and over were overweight in 2016, and 13% were obese.
- Most of the world's population live in countries where overweight and obesity kills more people than underweight.
- 40 million children under the age of 5 were overweight or obese in 2018.
- Over 340 million children and adolescents aged 5-19 were overweight or obese in 2016.
- Obesity is preventable.
What are obesity and overweight
Overweight and obesity are defined as abnormal or excessive fat accumulation that may impair health
For adults, WHO defines overweight and obesity as follows:
- overweight is a BMI greater than or equal to 25; and
- obesity is a BMI greater than or equal to 30.
BMI provides the most useful population-level measure of overweight and obesity as it is the same for both sexes and for all ages of adults. However, it should be considered a rough guide because it may not correspond to the same degree of fatness in different individuals.
For children, age needs to be considered when defining overweight and obesity.
Children under 5 years of age
- overweight is weight-for-height greater than 2 standard deviations above WHO Child Growth Standards median; and
- obesity is weight-for-height greater than 3 standard deviations above the WHO Child Growth Standards median.
- Charts and tables: WHO child growth standards for children aged under 5 years
Children aged between 5–19 years
- overweight is BMI-for-age greater than 1 standard deviation above the WHO Growth Reference median; and
- obesity is greater than 2 standard deviations above the WHO Growth Reference median.
- Charts and tables: WHO growth reference for children aged between 5–19 years
Facts about overweight and obesity
Some recent WHO global estimates follow.
- In 2016, more than 1.9 billion adults aged 18 years and older were overweight. Of these over 650 million adults were obese.
- In 2016, 39% of adults aged 18 years and over (39% of men and 40% of women) were overweight.
- Overall, about 13% of the world’s adult population (11% of men and 15% of women) were obese in 2016.
- The worldwide prevalence of obesity nearly tripled between 1975 and 2016.
In 2018, an estimated 40 million children under the age of 5 years were overweight or obese. Once considered a high-income country problem, overweight and obesity are now on the rise in low- and middle-income countries, particularly in urban settings. In Africa, the number of overweight children under 5 has increased by nearly 50 per cent since 2000. Nearly half of the children under 5 who were overweight or obese in 2018 lived in Asia.
Over 340 million children and adolescents aged 5-19 were overweight or obese in 2016.
The prevalence of overweight and obesity among children and adolescents aged 5-19 has risen dramatically from just 4% in 1975 to just over 18% in 2016. The rise has occurred similarly among both boys and girls: in 2016 18% of girls and 19% of boys were overweight.
While just under 1% of children and adolescents aged 5-19 were obese in 1975, more 124 million children and adolescents (6% of girls and 8% of boys) were obese in 2016.
Overweight and obesity are linked to more deaths worldwide than underweight. Globally there are more people who are obese than underweight – this occurs in every region except parts of sub-Saharan Africa and Asia.
What causes obesity and overweight?
The fundamental cause of obesity and overweight is an energy imbalance between calories consumed and calories expended. Globally, there has been:
- an increased intake of energy-dense foods that are high in fat and sugars; and
- an increase in physical inactivity due to the increasingly sedentary nature of many forms of work, changing modes of transportation, and increasing urbanization.
Changes in dietary and physical activity patterns are often the result of environmental and societal changes associated with development and lack of supportive policies in sectors such as health, agriculture, transport, urban planning, environment, food processing, distribution, marketing, and education.
What are common health consequences of overweight and obesity?
Raised BMI is a major risk factor for noncommunicable diseases such as:
- cardiovascular diseases (mainly heart disease and stroke), which were the leading cause of death in 2012;
- diabetes;
- musculoskeletal disorders (especially osteoarthritis – a highly disabling degenerative disease of the joints);
- some cancers (including endometrial, breast, ovarian, prostate, liver, gallbladder, kidney, and colon).
The risk for these noncommunicable diseases increases, with increases in BMI.
Childhood obesity is associated with a higher chance of obesity, premature death and disability in adulthood. But in addition to increased future risks, obese children experience breathing difficulties, increased risk of fractures, hypertension, early markers of cardiovascular disease, insulin resistance and psychological effects.
Facing a double burden of malnutrition
Many low- and middle-income countries are now facing a "double burden" of malnutrition.
- While these countries continue to deal with the problems of infectious diseases and undernutrition, they are also experiencing a rapid upsurge in noncommunicable disease risk factors such as obesity and overweight, particularly in urban settings.
- It is not uncommon to find undernutrition and obesity co-existing within the same country, the same community and the same household.
Children in low- and middle-income countries are more vulnerable to inadequate pre-natal, infant, and young child nutrition. At the same time, these children are exposed to high-fat, high-sugar, high-salt, energy-dense, and micronutrient-poor foods, which tend to be lower in cost but also lower in nutrient quality. These dietary patterns, in conjunction with lower levels of physical activity, result in sharp increases in childhood obesity while undernutrition issues remain unsolved.
How can overweight and obesity be reduced?
Overweight and obesity, as well as their related noncommunicable diseases, are largely preventable. Supportive environments and communities are fundamental in shaping people’s choices, by making the choice of healthier foods and regular physical activity the easiest choice (the choice that is the most accessible, available and affordable), and therefore preventing overweight and obesity.
At the individual level, people can:
- limit energy intake from total fats and sugars;
- increase consumption of fruit and vegetables, as well as legumes, whole grains and nuts; and
- engage in regular physical activity (60 minutes a day for children and 150 minutes spread through the week for adults).
Individual responsibility can only have its full effect where people have access to a healthy lifestyle. Therefore, at the societal level it is important to support individuals in following the recommendations above, through sustained implementation of evidence based and population based policies that make regular physical activity and healthier dietary choices available, affordable and easily accessible to everyone, particularly to the poorest individuals. An example of such a policy is a tax on sugar sweetened beverages.
The food industry can play a significant role in promoting healthy diets by:
- reducing the fat, sugar and salt content of processed foods;
- ensuring that healthy and nutritious choices are available and affordable to all consumers;
- restricting marketing of foods high in sugars, salt and fats, especially those foods aimed at children and teenagers; and
- ensuring the availability of healthy food choices and supporting regular physical activity practice in the workplace.
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2020-03-05 00:15
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Comments...
: Very nice calculator and information provided regarding bmi is superb..
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