What is the body mass index (BMI)? NHS choices. Calculate body mass index, Healthy Weight Basics. Get advice from your midwife or GP if you're concerned about your weight. You should not use BMI as a measure if you're pregnant. For example, adults of South Asian origin may have a higher risk of some health problems, such as diabetes, with a BMI of 23, which is usually considered healthy. Your ethnic group can also affect your risk of some health conditions. Muscle is much denser than fat, so very muscular people, such as heavyweight boxers, weight trainers and athletes, may be a healthy weight even though their BMI is classed as obese. As well as measuring your BMI, healthcare professionals may take other factors into account when assessing if you're a healthy weight. Please seek further advice from your GP.BMI takes into account natural variations in body shape, giving a healthy weight range for a particular height. If you're suffering from an eating disorder, the BMI calculator results do not apply. Your 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. This assessment compares your body weight to your height to come up with a value that indicates whether you are underweight, normal weight, overweight, or obese. 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 obvious limitation of the BMI formula is that it doesnt distinguish between fat weight and (healthier) muscle weight. 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. However, note that BMI measurements in body-builders and athletes may not be. Measuring waist size is not routinely advised for children because it doesn't take their height into account. The BMI approximates body mass using a mathematical ratio of weight and. For example, a girl on the 75th centile is heavier than 75 out of 100 other girls her age. Your BMI with activity factor is the number of calories your body. Find out more in very overweight children.Ī child's BMI is expressed as a 'centile' to show how their BMI compares to children who took part in national surveys. Your BMI calculator generates the number of calories your body burns per day at rest.
If you're concerned about your child's weight, see your GP. The BMI calculator uses the following BMI formula: Weight (lb) / (Height (in)) x 703.
The accuracy of BMI as an indicator of body fatness also appears to be higher in persons with. Use the BMI calculator below to determine your body mass index by inputting your height and weight. At the same BMI, athletes have less body fat than do non-athletes.
#Bmi calculator for athletes how to
Get tips on how to encourage your child to be more active and eat well BMI Calculator Knowing BMI can help adult men and women understand their overall health.
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