This calculator provides your child's weight percentile based on age. The percentile shows how your child's weight compares to other children. The percentile tells you what percentage of children weigh less than your child. For example out of a sample of 100 children, a percentile value of 40 percent means your child weighs more than 40 children and weighs less than the other 60.

A percentile of 50% represents the average or mean weight. A value below 50 percent means a child weighs less than the average. A value greater than 50 percent means a child is above average. This does not mean your child is overweight or underweight. A doctor or physician should be consulted to determine weight status.

A percentile of 50% represents the average or mean weight. A value below 50 percent means a child weighs less than the average. A value greater than 50 percent means a child is above average. This does not mean your child is overweight or underweight. A doctor or physician should be consulted to determine weight status.

- Note, this calculator uses the Center for Disease Center (CDC) children charts for 2-20 year olds
- Enter Birthday
- Enter Measurement Date
- Enter Weight

- Percentile - The weight percentile of the child.
- Age - The age of the child in months
- Weight - The mass of the child in metric and standard units.
- Graph Plot - Weight versus age graph with 5, 10, 25, 50, 75, 95 and calculated percentile lines.

Centers for Disease Control and Prevention (CDC). National Center for Health Statistics (NCHS). National Health and Nutrition Examination Survey Data. Hyattsville, MD: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, 2008 http://www.cdc.gov/growthcharts/.

The United States Center for Disease Control (CDC) recommends using the World Health Organization (WHO) charts for the first two year of life (0 to 2 years). After two years, it is recommended to return to the CDC charts.

Weight-Age (WHO 0-2 years)
Length-Age (WHO 0-2 years)
Weight-Length (WHO 0-2 years)
Head Circumference-Age (WHO 0-2 years)

Weight-Age (CDC 0-3 years)
Length-Age (CDC 0-3 years)
Weight-Length (CDC 0-3 years)
Head Circumference-Age (CDC 0-3 years)
Weight-Age (CDC 2-20 Years)
Stature-Age (CDC 2-20 Years)
Weight-Stature (CDC 2-20 Years)

Weight-Age (WHO 0-5 years)
Length-Age (WHO 0-2 years)
Height-Age (WHO 2-5 years)
Weight-Length (WHO 0-2 years)
Weight-Height (WHO 2-5 years)
Head Circumference-Age (WHO 0-5 years)

Weight-Age (China 0-18 years)
Length-Age (China 0-3 years)
Height-Age (China 3-18 years)
Head Circumference-Age (China 0-6 years)
Weight-Length (China 0-3 years)
Weight-Height (China 3-18 years)

Weight-Age (23-41 Gestational Weeks)
Length-Age (23-41 Gestational Weeks)
Head Circumference-Age (23-41 Gestational)

Use this calculator at your own risk. This calculator may or may not be accurate or reliable. By using this calculator you acknowledge any reliance on this calculator shall be at your sole risk.

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Technical Tools, Specifications, How to Guides, Training, Applications, Examples, Tutorials, Reviews, Answers, Test Review Resources, Analysis, Homework Solutions, Help, Data and Information for Engineers, Technicians, Teachers, Tutors, Researchers, K-12 Education, College and High School Students, Science Fair Projects and Scientists