The World Health Organisation (WHO) defines a healthy adult BMI as being between 18.5 and 25. The following categories are used to determine adult body types based on BMI scores. If you are concerned then speak to your doctor. Older people tend to have more body fat than younger people with the same BMI, there may be health benefits for some over 70's who fall into the 'overweight' range.
You have a very athletic, muscular build. Muscles weigh more than fat and therefore for athletes BMI is unrepresentative of true fat levels. Athletes' BMI may indicate that they are overweight when they are not in reality.įurthermore: Women generally have more body fat at the same BMI as men. You are aged between 2 and 18 – Although the same method is used to calculate BMI in children and adolescents, an extra step is required to gain a meaningful value. Understanding BMIīMI is not always accurate, your BMI may not be a valid indicator of body fat if: You can use metric or imperial measurements or a combination of the two. Use our calculator to work out your Body Mass Index. Use some reliable scales to measure your weight, remove as much clothing as appropriate before weighing yourself. Most people know their height – if you don’t know yours then ask somebody to measure you – approximate values within a few centimetres or an inch are fine. In order to calculate your Body Mass Index you need to know your height and weight. Your Body Mass Index is therefore an important reference, this page includes simple tools that you can use to calculate and monitor your BMI.
Body Mass Index is also used to help establish effective drug doses – people with a higher BMI may require a higher dose of medicine. BMI, Body Mass Index is a measure of a person’s body shape – how fat or thin they are.īMI is calculated from a person’s height and weight which give an indication of the levels of fat in their body.īMI is not a perfect system for measuring body fat, however in most cases BMI is reliable and gives a fair indication of body fat levels.īMI is widely used, internationally by many healthcare professionals to help establish a patient’s risk of illness - especially diseases and health complaints associated with being overweight or obese.
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