body mass index calculator with age and gender

#BODY MASS INDEX CALCULATOR WITH AGE AND GENDER HOW TO#

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. Please seek further advice from your GP.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. If you're suffering from an eating disorder, the BMI calculator results do not apply. You can use your BMI result as a starting point for further discussion with your GP about your weight and your general health.įind out more in How your GP can help and check out the Change4Life website for practical tips on staying healthy as a family. However, the BMI is a relatively straightforward and convenient method of assessing someone's weight. adults who lose muscle as they get older may fall in the 'healthy weight' range even though they may be carrying excess fat.very muscular adults and athletes may be classed 'overweight' or 'obese' even though their body fat is low.The adult BMI does not take into account age, gender or muscle mass. The BMI can't tell the difference between excess fat, muscle, or bone. Your BMI can tell you if you're carrying too much weight but it can't tell if you're carrying too much fat. If you're concerned about your child's weight, contact your GP who may be able to refer you to your local healthy lifestyle programme for children, young people and families. Measuring waist size is not routinely advised for children because it doesn't take their height into account. For example, a girl on the 75th centile is heavier than 75 out of 100 other girls her age. Find out more in very overweight childrenĪ child's BMI is expressed as a 'centile' to show how their BMI compares to children who took part in national surveys. If you're concerned about your child's weight, see your GP.

#BODY MASS INDEX CALCULATOR WITH AGE AND GENDER HOW TO#

Get tips on how to encourage your child to be more active and eat well healthy weight: between the 2nd and 91st centiles.underweight: on the 2nd centile or below.The BMI calculator works out if a child or young person is: Obese children are thought to be at increased risk of a variety of health conditions, and they're also more likely to be overweight or obese as adults. For children and young people aged 2 to 18, the BMI calculator takes into account age and gender as well as height and weight.

Body mass index calculator with age and gender