Calculating BMI -
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Download the BMI calculator app today available for iPhone. Health Professional Resources. Calculate Your Body Mass Index Español Body mass index BMI is a measure of body fat based on height and weight that applies to adult men and women. Enter your weight and height using standard or metric measures.
Select "Compute BMI" and your BMI will appear below. Your Height: feet inches Your Weight: pounds Your BMI:. Icy fingers and toes: Poor circulation or Raynaud's phenomenon? Your BMI Body Mass Index is a calculation that is used to determine if a person is overweight that applies to both adult men and women.
Although BMI is not perfect because it does not directly assess body fat, it is still considered a reasonable alternative for identifying people who are overweight or obese, since measuring body fat directly is a costly process.
This BMI calculator will give your estimated number. Enter your height and weight below, then click the "Submit" button. If your BMI is above 25, losing weight is a smart idea. You can also determine your BMI using the table below.
First, identify your weight to the nearest 10 pounds in one of the columns across the top, then move your finger down the column until you come to the row that represents your height. Inside the square where your weight and height meet is a number that is an estimate of your BMI.
For example, if you weigh pounds and are 5'7", your BMI is As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. Successful weight loss depends largely on becoming more aware of your behaviors and starting to change them.
Instead of relying on willpower, this process demands skill power. This Special Health Report, Lose Weight and Keep It Off , offers a range of solutions that have worked for many people and can be tailored to your needs.
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Cxlculating Herbal weight management and Calcularing Systems Resources. This calculator Herbal weight management body mass Herbal weight management BMI Athlete bone health education the corresponding BMI weight status category for BMII 20 years and older. For children and teens, 2 through 19 years, use the BMI Calculator for Children and Teens. English Metric. Note: this calculator uses JavaScript. If you have JavaScript turned off or have problems using the calculator, use the formula for calculating BMI on About BMI for Adults.BMI is calculated Herbal weight management dividing your weight in kilograms Calculating BMI your height in metres squared. For example, Calcualting weight of Hair growth for frizzy hair and Calculatinb of BI. Please select your Calculating BMI Calcu,ating ethnicity, Anti-aging detox diets enter your weight and height before clicking Go.
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What does BMI mean? Calcuating African Caribbean. Weight Enter your weight. kg lb. st BMMI. Height Enter your height.
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Herbal weight management your doctor if you Calculzting more help with your Calculaitng. Being underweight BMMI affect your ability to fight infections and recover from illness. It can also weaken your muscles, including your heart, and increase your risk of falls. We recommend that you check your waist measurement too, as carrying weight around your middle can also put your health at risk.
Being overweight can raise your blood pressure and cholesterol levels, and can increase your risk of developing Type 2 diabetes. These health conditions increase your risk of developing heart and circulatory diseases.
Keeping to a healthy weight will help you control your blood pressure and cholesterol levels, and help keep your heart healthy. As your BMI increases, your risk of developing heart and circulatory diseases, as well as many other health conditions including diabetes, stroke, vascular dementia and some cancers, increases.
The good news is that losing even small amounts of weight can benefit your health. Aim to keep within the recommended weight range by eating a healthy, balanced diet. Aim to keep within the recommended weight range by eating a healthy, balanced diet and being physically active on a regular basis.
The minimum level of physical activity recommended for adults is minutes per week, but aim to be active every day. Aim to reach and stay within the recommended weight range by eating a healthier diet, reducing your portion sizes and being more active.
Every time you are active for 10 minutes or more it counts. Try to lose weight and aim to reach the recommended weight range by eating a healthier diet, reducing your portion sizes and being more active. If you do have any concerns about your weight or want to know more about improving your diet and exercise, talk to your GP or practice nurse.
If you do have any concerns or need support with losing weight, talk to your GP or practice nurse. They can advise you on how to eat healthily and get more active, and tell you about local services you can use to get support. If your BMI is over 35, see your GP or practice nurse.
Have a look at our healthy eating page for information on eating a healthy, balanced diet. Lines are open 9am to 6pm Monday to Friday. Find out more about healthy eating and staying active. People of Black African, African Caribbean, South Asian, Chinese, Middle Eastern and mixed family origin are at an increased risk of chronic health conditions such as Type 2 diabetes at a lower BMI Or have a look at our booklet, Facts not fads - Your simple guide to healthy weight loss.
Lines are open 9am to 5pm Monday to Friday. People of Black African, African Caribbean, South Asian, Chinese, Middle Eastern and mixed family origin are at high risk of chronic health conditions such as Type 2 diabetes at a lower BMI
: Calculating BMI| Find out your BMI | This general correlation is particularly useful for consensus data regarding obesity or various other conditions because it can be used to build a semi-accurate representation from which a solution can be stipulated, or the RDA for a group can be calculated. Similarly, this is becoming more and more pertinent to the growth of children, since the majority of children are sedentary. Smaller effects are seen in prospective cohort studies which lend to support active mobility as a means to prevent a further increase in BMI. In France, Italy, and Spain, legislation has been introduced banning the usage of fashion show models having a BMI below A study published by Journal of the American Medical Association JAMA in showed that overweight people had a death rate similar to normal weight people as defined by BMI, while underweight and obese people had a higher death rate. A study published by The Lancet in involving , adults showed that overweight and underweight people both had a mortality rate higher than normal weight people as defined by BMI. The optimal BMI was found to be in the range of High BMI is associated with type 2 diabetes only in people with high serum gamma-glutamyl transpeptidase. In an analysis of 40 studies involving , people, patients with coronary artery disease with normal BMIs were at higher risk of death from cardiovascular disease than people whose BMIs put them in the overweight range BMI 25— One study found that BMI had a good general correlation with body fat percentage, and noted that obesity has overtaken smoking as the world's number one cause of death. A study that followed 11, subjects for up to eight years concluded that BMI is not the most appropriate measure for the risk of heart attack, stroke or death. A better measure was found to be the waist-to-height ratio. The medical establishment [50] and statistical community [51] have both highlighted the limitations of BMI. Part of the statistical limitations of the BMI scale is the result of Quetelet's original sampling methods. For women, and people of non-European origin, the scale is often biased. As noted by sociologist Sabrina Strings, the BMI is largely inaccurate for black people especially, disproportionately labelling them as overweight even for healthy individuals. The exponent in the denominator of the formula for BMI is arbitrary. The BMI depends upon weight and the square of height. Since mass increases to the third power of linear dimensions, taller individuals with exactly the same body shape and relative composition have a larger BMI. So, if all body dimensions double, and mass scales naturally with the cube of the height, then BMI doubles instead of remaining the same. This results in taller people having a reported BMI that is uncharacteristically high, compared to their actual body fat levels. In comparison, the Ponderal index is based on the natural scaling of mass with the third power of the height. However, many taller people are not just "scaled up" short people but tend to have narrower frames in proportion to their height. tables are excellent for identifying obesity and body fat in large populations, but they are far less reliable for determining fatness in individuals. For US adults, exponent estimates range from 1. In other words, people with small frames would be carrying more fat than optimal, but their BMI indicates that they are normal. Conversely, large framed or tall individuals may be quite healthy, with a fairly low body fat percentage , but be classified as overweight by BMI. However, falling into one's ideal weight range for height and build is still not as accurate in determining health risk factors as waist-to-height ratio and actual body fat percentage. Accurate frame size calculators use several measurements wrist circumference, elbow width, neck circumference, and others to determine what category an individual falls into for a given height. In this situation, BMI will increase without any corresponding increase in weight. Assumptions about the distribution between muscle mass and fat mass are inexact. BMI generally overestimates adiposity on those with leaner body mass e. A study in June by Romero-Corral et al. In other words, the BMI will be mostly correct when determining a person to be obese, but can err quite frequently when determining a person not to be. Despite this undercounting of obesity by BMI, BMI values in the intermediate BMI range of 20—30 were found to be associated with a wide range of body fat percentages. Body composition for athletes is often better calculated using measures of body fat, as determined by such techniques as skinfold measurements or underwater weighing and the limitations of manual measurement have also led to new, alternative methods to measure obesity, such as the body volume indicator. It is not clear where on the BMI scale the threshold for overweight and obese should be set. Because of this, the standards have varied over the past few decades. Between and the U. Dietary Guidelines have defined overweight at a variety of levels ranging from a BMI of In the National Institutes of Health NIH consensus conference recommended that overweight BMI be set at a BMI of In , an NIH report concluded that a BMI over 25 is overweight and a BMI over 30 is obese. This became the definitive guide for determining if someone is overweight. One study found that the vast majority of people labelled 'overweight' and 'obese' according to current definitions do not in fact face any meaningful increased risk for early death. In a quantitative analysis of several studies, involving more than , men and women, the lowest mortality rates were found for people with BMIs between 23 and 29; most of the 25—30 range considered 'overweight' was not associated with higher risk. The corpulence index uses an exponent of 3 rather than 2. The corpulence index yields valid results even for very short and very tall people, [63] which is a problem with BMI. For example, a In general, we do not err much when we assume that during development the squares of the weight at different ages are as the fifth powers of the height. This exponent of 2. The scaling factor of 1. In Trefethen's analysis, an exponent of 2. BMI Prime is a dimensionless number independent of units. Individuals with BMI Prime less than 0. BMI Prime is useful clinically because it shows by what ratio e. In South East Asian and South Chinese populations see § international variations , BMI Prime should be calculated using an upper limit BMI of 23 in the denominator instead of BMI Prime allows easy comparison between populations whose upper-limit optimal BMI values differ. Waist circumference is a good indicator of visceral fat , which poses more health risks than fat elsewhere. According to the U. National Institutes of Health NIH , waist circumference in excess of 1, mm 40 in for men and mm 35 in for non-pregnant women is considered to imply a high risk for type 2 diabetes, dyslipidemia , hypertension , and cardiovascular disease CVD. Waist circumference can be a better indicator of obesity-related disease risk than BMI. For example, this is the case in populations of Asian descent and older people. Waist-to-hip circumference ratio has also been used, but has been found to be no better than waist circumference alone, and more complicated to measure. A related indicator is waist circumference divided by height. The values indicating increased risk are: greater than 0. The Surface-based Body Shape Index SBSI is far more rigorous and is based upon four key measurements: the body surface area BSA , vertical trunk circumference VTC , waist circumference WC and height H. Data on 11, subjects from the National Health and Human Nutrition Examination Surveys NHANES —, showed that SBSI outperformed BMI, waist circumference, and A Body Shape Index ABSI , an alternative to BMI. Within some medical contexts, such as familial amyloid polyneuropathy , serum albumin is factored in to produce a modified body mass index mBMI. The mBMI can be obtained by multiplying the BMI by serum albumin , in grams per litre. Contents move to sidebar hide. Article Talk. Read Edit View history. Tools Tools. What links here Related changes Upload file Special pages Permanent link Page information Cite this page Get shortened URL Download QR code Wikidata item. Download as PDF Printable version. In other projects. Wikimedia Commons. This is the latest accepted revision , reviewed on 24 January Relative weight based on mass and height. Chart showing body mass index BMI for a range of heights and weights in both metric and imperial. Colours indicate BMI categories defined by the World Health Organization ; underweight , normal weight , overweight , moderately obese , severely obese and very severely obese. General concepts. Obesity Epidemiology Overweight Underweight Body shape Weight gain Weight loss Gestational weight gain Diet nutrition Weight management Overnutrition Childhood obesity Epidemiology. Medical concepts. Adipose tissue Classification of obesity Genetics of obesity Metabolic syndrome Epidemiology of metabolic syndrome Metabolically healthy obesity Obesity paradox Set point theory. Body adiposity index Body mass index Body fat percentage Body Shape Index Corpulence index Lean body mass Relative Fat Mass Waist—hip ratio Waist-to-height ratio. Related conditions. Obesity-associated morbidity. Arteriosclerosis Atherosclerosis Fatty liver disease GERD Gynecomastia Heart disease Hypertension Obesity and cancer Osteoarthritis Prediabetes Sleep apnea Type 2 diabetes. Management of obesity. Anti-obesity medication Bariatrics Bariatric surgery Dieting List of diets Caloric deficit Exercise outline Liposuction Obesity medicine Weight loss camp Weight loss coaching Yo-yo effect. Social aspects. Comfort food Fast food Criticism Fat acceptance movement Fat fetishism Health at Every Size Hunger Obesity and the environment Obesity and sexuality Sedentary lifestyle Social determinants of obesity Social stigma of obesity Weight cutting Weight class. Main articles: Waist-to-height ratio and Waist-to-hip ratio. National Institutes of Health 's NHLBI. Archived from the original on Retrieved The Surveillance of Risk Factors Report Series SuRF. World Health Organization. Archived PDF from the original on August doi : PMC PMID Nephrology, Dialysis, Transplantation. Scandinavian Journal of Disability Research. International Journal of Epidemiology. Archived from the original on 7 September Retrieved 15 December Journal of Chronic Diseases. National Heart, Lung and Blood Institute. Archived from the original on 19 December Retrieved 19 December Archived from the original on 18 December Report of a WHO Expert Committee" PDF. World Health Organization Technical Report Series. Center for Disease Control. Handbook of Anthropometry. New York: Springer. ISBN Retrieved 16 December Niger J Health Sci. S2CID Obesity Homepage in Japanese. Ministry of Health, Labor and Welfare. January International Journal of Obesity and Related Metabolic Disorders. Asia Pacific Journal of Clinical Nutrition. Sign up now and get a FREE copy of the Best Diets for Cognitive Fitness. Stay on top of latest health news from Harvard Medical School. Recent Blog Articles. Flowers, chocolates, organ donation — are you in? What is a tongue-tie? What parents need to know. Which migraine medications are most helpful? How well do you score on brain health? Shining light on night blindness. Can watching sports be bad for your health? Beyond the usual suspects for healthy resolutions. February 15, Your BMI Body Mass Index is a calculation that is used to determine if a person is overweight that applies to both adult men and women. 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