A healthcare professional should be consulted to interpret the results and provide recommendations for any necessary interventions. It’s important to note that BMI is just one factor in determining a child’s overall health. Easily estimate your Body Mass Index based on weight and height (feet and inches, pounds, or meters and centimeters and kilograms). Equal to or greater than the 95th percentile: Obese Free online Body Mass Index Calculator (BMI Calculator) to determine your Body Mass Index & BMI category.85th percentile to less than the 95th percentile: Overweight.5th percentile to less than the 85th percentile: Normal weight.Less than the 5th percentile: Underweight.Your WHR number can help you determine which body shape category you fit into. Enter your waist and hip measurements (in either cm or inches). ( explanation) Work out your waist-to-hip ratio (WHR) with this calculator tool. Step 4: Interpret the results The BMI-for-age percentile is interpreted as follows: Measure your waist at the narrowest point and your hips at the widest point. The BMI percentile indicates where the child falls compared to other children of the same age and gender. The resulting BMI value should be plotted on a BMI-for-age growth chart to determine the child’s BMI percentile. Note: If you measured height in inches, divide the result by 39.37 to convert to meters. Step 3: Determine the child’s BMI percentile After obtaining the child’s weight and height, you can calculate their BMI using the following formula: Step 2: Measure the child’s height Measure the child’s height in centimeters (cm) or inches (in) using a measuring tape or stadiometer. Step 1: Measure the child’s weight Measure the child’s weight in kilograms (kg) or pounds (lbs) using a calibrated scale. For example, a girl on the 75th centile is heavier than 75 out of 100 other girls her age. The centile result is shown as a percentage of how their BMI compares with other children or teenagers of the same age and sex. ![]() The following steps can guide you on how to calculate BMI for children: A child or teenager's BMI is shown as a 'centile'. If you have any concerns please consult your local physician.ĭue to data available from the CDC, results can only be broken down into 3rd, 5th, 10th, 25th, 50th, 75th, 85th, 90th, 95th, and 97th percentile groupings.To calculate BMI for children, you need to use their age, gender, weight, and height. These calculators do not measure body composition (this is usually done using skinfold thickness), and BMI is not a diagnostic tool. Children’s growth happens at all different ages and stages, so instead of straight BMI, for children it is often referred to as BMI-for-age. The idea of finding the IBW using a formula has been sought after by many experts for a long time. 34.6 kg).Īs children are still growing, a simple measurement of weight for height (as is BMI) is not appropriate. The Ideal Weight Calculator computes ideal body weight (IBW) ranges based on height, gender, and age. Enter an accurate weight (use 1 decimal place: e.g.Use this calculator for children and teens, aged 2 through 19 years old. BMI is an estimate of body fat and a good measure of your patients risk for diseases that can occur with. This calculator provides BMI and the corresponding BMI-for-age percentile on a CDC BMI-for-age growth chart. The higher your BMI, the higher your risk of obesity-related disease. It is also good a measure of patients risk of heart diseases that occur with more body fat. Please measure height accurately (stand the child against a wall, mark where the top of their head is, and use a tape measure). The BMI Calculator is an easy-to-use online tool to help estimate body fat.The US CDC provides a large amount of growth charts that break down childhood weight and height data into a series of percentiles ( source). For example if you are above the 95th percentile, you would be in the top 5%. ![]() ![]() PercentileĪ percentile is a way of dividing a population into 100 equal groups. According to the CDC these categories were chosen by an ‘expert committee’. This allows you to check your childs weight against the overall population. The center black line indicates the 50th percentile (the "average" BMI for this age).
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