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Where do you Stand ?
Guidelines for taking height and weight measurements for boys and girls below 18 years of age at home
The material on this web site is provided for educational purposes only, and is not to be used for medical advice, diagnosis or treatment.
Measuring Height Accurately At Home
To measure height accurately at home to calculate BMI-for-age:
1. Remove the child or teen's shoes, bulky clothing, and hair ornaments, and unbraid hair that interferes with the
2. Take the height measurement on flooring that is not carpeted and against a flat surface such as a wall with no molding.
3. Have the child or teen stand with feet flat, together, and against the wall. Make sure legs are straight, arms are at sides, and
shoulders are level.
4. Make sure the child or teen is looking straight ahead and that the line of sight is parallel with the floor.
5. Take the measurement while the child or teen stands with head, shoulders, buttocks, and heels touching the flat surface
(wall). (See pic below.) Depending on the overall body shape of the child or teen, all points may not touch the wall.
6. Use a flat headpiece to form a right angle with
the wall and lower the headpiece until it firmly
touches the crown of the head.
7. Make sure the measurer's eyes are at the same
level as the headpiece.
8. Lightly mark where the bottom of the headpiece
meets the wall. Then, use a metal tape to
measure from the base on the floor to the
marked measurement on the wall to get the
9. Accurately record the height to the nearest
1/8th inch or 0.1 centimeter.
Measuring Weight Accurately At Home
To measure weight accurately at home to calculate BMI-for-age:
1. Use a digital scale. Avoid using bathroom scales that are spring-loaded. Place
the scale on firm flooring (such as tile or wood) rather than carpet.
2. Have the child or teen remove shoes and heavy clothing, such as sweaters.
3. Have the child or teen stand with both feet in the center of the scale.
4. Record the weight to the nearest decimal fraction (for example, 55.5 pounds or