how to calculate body mass index

Personal Trainer. "I love the simplicity and completeness of this page.". A BMI of 25 to 29.9 means that you are overweight. Black, Asian and some other minority ethnic groups have a higher risk of developing some long-term conditions such as type 2 diabetes with a lower BMI. For someone who is 5 feet 5 inches tall (65 inches . It measures weight in relation to height to determine BMI category: Normal weight: BMI of 18.5 to 24.9 Overweight: BMI of 25 to 29.9 2. Body Mass Index (BMI) Calculator. See Recommendation Internal Medicine , 51(14). When you click the 'Calculate' button, you'll be taken to a section about your results. We invite you to reach out, connect and work with us as we strive towards this vision. Then, divide your weight by your height. You can read more about his research in this HealthyDebate article published in 2016. Another easy way to determine if you are at a healthy weight is to. There are 7 references cited in this article, which can be found at the bottom of the page. All rights reserved. However, BMI is not always an accurate measurement of body fatness and is not the sole determiner of your general health. The table below shows a person's weight classification based on their BMI prime: BMI prime allows us to make a quick assessment of how much a person's BMI differs from the upper limit of BMI that is considered normal. Coming to a Cleveland Clinic location?Hillcrest Cancer Center check-in changesCole Eye entrance closingVisitation and COVID-19 information. The centile number shows how their BMI compares with other children of the same age and sex as a percentage. There are also online calculators available if you are having trouble calculating your BMI manually. However, you should ask your family doctor, pediatrician, or other health care provider about your child's BMI percentile and whether they are at risk for disease. To calculate your body mass index (BMI), start by measuring your height in meters and then squaring it. It gives you a clue to your risk for weight-related health problems. For example, 152 centimeters equals 1.52 meters. Why it matters: Doctors have long relied on BMI to measure obesity, but it is an imperfect measurement that does not directly assess body fat, the . NHS's 'healthy weight' calculator made people fatter . Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on what range the value falls between. https://doi.org/10.2169/internalmedicine.51.7410. Below is the equation for computing the PI of an individual using USC, again using a 5'10", 160-pound individual as an example: Healthy weight for the height: 128.9 lbs - 174.2 lbs, Higher levels of LDL cholesterol, which is widely considered "bad cholesterol," lower levels of HDL cholesterol, considered to be good cholesterol in moderation, and high levels of triglycerides, Osteoarthritis, a type of joint disease caused by breakdown of joint cartilage, Certain cancers (endometrial, breast, colon, kidney, gallbladder, liver), Mental illnesses such as clinical depression, anxiety, and others, Body pains and difficulty with certain physical functions, Generally, an increased risk of mortality compared to those with a healthy BMI, Malnutrition, vitamin deficiencies, anemia (lowered ability to carry blood vessels), Osteoporosis, a disease that causes bone weakness, increasing the risk of breaking a bone, Growth and development issues, particularly in children and teenagers, Possible reproductive issues for women due to hormonal imbalances that can disrupt the menstrual cycle. Being overweight or underweight can have significant health effects, so while BMI is an imperfect measure of healthy body weight, it is a useful indicator of whether any additional testing or action is required. For instance, the BMI of a person who is 5'3" and weighs 125 lbs is calculated as follows: Multiply the weight in pounds by 0.45 (the metric Find primary and specialty care near you. Expert Interview. It also provides a source of energy for your body, helps maintain body temperature and protects your organs. Every discovery advances academic medicine and improves the vitality of our communities. Dean Theriot is a Personal Trainer and the Owner of Timberline Fitness in Houston, Texas. BMI is a better indicator of excess body fat for obese children than it is for overweight children, whose BMI could be a result of increased levels of either fat or fat-free mass (all body components except for fat, which includes water, organs, muscle, etc.). Normal weight = 18.5-24.9. Next review due: 29 March 2026, 23 or more are at increased risk (overweight), underweight on the 2nd centile or below, a healthy weight between the 2nd and 91st centiles. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. The BMI calculator measures your body fat by using your weight and height. Generally, according to the CDC: The same factors that limit the efficacy of BMI for adults can also apply to children and adolescents. Translational scientists turn science and research into improved treatments. By using our site, you agree to our. Calculate BMI calculator results are grouped into the broad categories: underweight, healthy weight, overweight and obesity. In a study published in the Journal of Economics in 2008, John Cawley, professor at Cornell University, was able to demonstrate that, relative to percent body fat, BMI appears to misclassify substantial fractions of individuals as obese or non-obese. Include your email address to get a message when this question is answered. Find out more about having a balanced diet and find fitness videos you can try at home to maintain a healthy weight. The standard BMI chart has limitations for various reasons. Body mass index ( BMI) is an "imperfect" measure of body fat with a "problematic history," so the metric should be used in conjunction with other measures of health risk, such as a patient's . It can be used to place a person in categories ranging from underweight to obese. The results you receive from this tool are for informational purposes only Then square that number for your height, so 1.5 x 1.5 = 2.25. The approximate BMI for this person would be 26. If you want to lose weight, you can find more information at NHS Better Health. The BMI calculation divides an adult's weight in kilograms (kg) by their height in metres (m) squared. There are different ways of calculating your BMI depending on the type of measurements you have taken. There are 12 inches in a foot, so we simply multiply the 5ft by 12 and then add the 11 inches. Since BMI prime is a ratio of two BMI values, BMI prime is a dimensionless value. A person's health risks may drastically rise if their BMI is outside of the healthy range. Similarly, you could have a high BMI without having any of these conditions. This content does not have an Arabic version. You should not use the standard BMI chart to evaluate a childs or teenagers weight. You can calculate BMI yourself with these steps: For example, a person who weighs 180 lbs. [1] This article was co-authored by Dean Theriot. Now it's everywhere, most . A person who has a BMI prime less than 0.74 is classified as underweight; from 0.74 to 1 is classified as normal; greater than 1 is classified as overweight; and greater than 1.2 is classified as obese. Last reviewed by a Cleveland Clinic medical professional on 05/09/2022. Body mass index (BMI) is a tool that healthcare providers use to estimate the amount of body fat by using your height and weight measurements. To calculate your BMI, divide your weight in pounds by your height in inches squared, then multiply the results by a conversion factor of 703. Policy. Older adults tend to have more body fat than younger adults with the same BMI. Body mass index is a method for determining a person's amount of body fat. Knowing your body mass index, or BMI, can be useful for assessing and adjusting your weight. If you're underweight, a GP can help. Use the BMI calculator for adults to work out your Body Mass Index. Body mass index and the risk of stroke in men. Then, divide your weight in kilograms by your height in meters squared to find your BMI. This gives us 1.8m. Your body is made up of water, fat, protein, carbohydrate and various vitamins and minerals. Receive automatic alerts about NHLBI related news and highlights from across the Institute. good news about this recommendation is that if you follow the A high BMI can indicate high body fatness. JAMA Network Open, 1(4), e181271e181271. Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. It goes without saying that you should always speak to a Doctor or health professional for advice and guidance if you are concerned about your weight. Body mass index (BMI) is a medical screening tool that measures the ratio of your height to your weight to estimate the amount of body fat you have. Through collaboration with the brightest minds in science and medicine MCWs Centers are at the forefront of discovery and innovation. This calculator provides body mass index (BMI) and the corresponding BMI weight status category for adults 20 years and older. Critics have long argued . Another option is to simply change your height in centimeters to meters by moving the decimal two places to the left. People who are obese (BMI of 30 or above) almost always have a large amount of body fat in relation to their height. Breathe out naturally before taking the measurement. BMI screens for weight categories that may lead to health problems, but it does not diagnose the body fatness or health of an individual. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. Select "Compute BMI" and your BMI will appear below. It is used for both men and women, age 20 or older. You will need to multiply your height in meters by itself first. The BMI for a person who is The body mass index formula is kg/m2, where kg is your weight in kilograms and m2 is your height in meters squared. Download the BMI calculator app today (available for iPhone and Android ). For Black, Asian and some other minority ethnic groups, the healthy weight range is 18.5 to 23. "It helped me about how to calculate BMI.". The BMI calculation does not include muscle mass, which weighs more than fat. conversion factor). 1998-2023 Mayo Foundation for Medical Education and Research (MFMER). Read more information about obesity. BMI is calculated by dividing your weight in pounds by the square of your height in inches, and then multiplying by a conversion factor of 703, according to the CDC. How to Calculate Your Body Mass Index (BMI), https://www.cdc.gov/healthyweight/assessing/bmi/adult_bmi/, http://www.cdc.gov/nccdphp/dnpao/growthcharts/training/bmiage/page5_1.html, http://www.cdc.gov/healthyweight/assessing/bmi/adult_bmi/, http://www.diabetes.co.uk/bmi/why-is-bmi-important.html, Calcular seu ndice de Massa Corporal (IMC), Vcut Kitle ndeksi (VK) Nasl Hesaplanr. Calculate Body Mass Index. The body mass index (BMI) metric has caused "historical harm," including racist exclusion, according to a new report by the American Medical Association (AMA) Council on Science and Public Health. The BMI calculator measures your body fat by using your weight and height. 1 Take your height in meters and square the number. healthy weight. We do not endorse non-Cleveland Clinic products or services. Use the interactive BMI formula calculator below to demonstrate the formula and resulting BMI calculation for your chosen weight and height figures. Make sure that you know your current height and weight before you get started and then try calculating your BMI. These simple steps will help you work out your BMI: For an adult with height of 180 cm and weight of 75 kg. To receive email updates about this topic, enter your email address. The main difference between the PI and BMI is the cubing rather than squaring of the height in the formula (provided below). Several other factors, such as genetics, activity level, smoking cigarettes or using tobacco, drinking alcohol and mental health conditions all affect your overall health and your likelihood of developing certain medical conditions. We work closely with partners to redefine health beyond healthcare and with a bold vision of achieving health equity for all. The body mass index (BMI) is a measure that uses your height and weight to work out if your weight is healthy. What is BMI? Linderman, G. C., Lu, J., Lu, Y., Sun, X., Xu, W., Nasir, K., Schulz, W., Jiang, L., & Krumholz, H. M. (2018). It wasn't until 1972, when physiologist Dr. Ancel Keys proposed it as an estimate of body fat, that it got its more recognizable name: the body mass index, or BMI. BMI is less accurate for assessing healthy weight in some groups of . For a full chart of BMI values, customised for your own height and weight, see my interactive BMI chart. High body fat may lead to heart disease, stroke and Type 2 diabetes. Formula: weight (kg) / [height (m)] 2 BMI can also be calculated by dividing your weight in pounds by your height in inches squared, then multiplying the answer by 703. Body mass index as a standard measure of healthy or unhealthy weight, is once again being called into question with the American Medical Association recommending physicians deemphasize BMI in patient care and employ other ways to address weight.
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