![]() During pregnancy and lactation, a woman's body composition changes, so using BMI is not appropriate.įor more information, visit Health Canada's Canadian Guidelines for Body Weight Classification in Adults. Those with a lower muscle mass, such as children who have not completed their growth or the elderly who may be losing some muscle mass may have a lower BMI. Those with a higher muscle mass, such as athletes, may have a high BMI but not be at greater health risk. This is because BMI does not take into account whether the weight is carried as muscle or fat, just the number. Instead of comparison against fixed thresholds for underweight and overweight, the BMI is compared against the percentiles for children of the same sex and age. It will tell you if a child is underweight, at an ideal weight, at risk of being. Draw horizontal line from patients height for age across the 50th percentile height-for-age line. It will tell you if a child is underweight, at an ideal weight, at risk of being. 165 lbs x 70328(64 inches) x (64 inches) To calculate an adults BMI using the metric formula. The calculation of this BMI percentile can be plotted on a growth chart to give a sense of where they fall compared to other children of the same sex and age. For example, a person who weighs 165 pounds and is 5 feet 4 inches tall has a BMI of 28. To calculate an adults BMI using the English formula. Who shouldn't use a BMI calculatorīMI is not used for muscle builders, long distance athletes, pregnant women, the elderly or young children. This calculator gives an approximate BMI for children from ages 5 to 18. This calculator gives an approximate BMI for children from ages 5 to 19. Or you can easily calculate it from the CDCs online tool. These charts are designed specifically for children from 2 to 18 years of age, and the charts are recommended for use in Australian children aged 2 to 18 years. ![]() ![]() The formula is BMI = kg/m 2 where kg is a person’s weight in kilograms and m 2 is their height in metres squared.Ī BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. The weight status calculation for children and teenagers is based on the BMI-for-age charts developed by the US Centres for Disease Control and Prevention (CDC 2000). Body Mass Index is a simple calculation using a person’s height and weight.
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