- Percentiles Calculator for Young Children - birth to age 3
- Percentiles Calculator for Older Children - 2 to 20 years
- Body Mass Index Calculator
- Growth Charts
Notes on percentiles:Percentiles are the most commonly used clinical indicator to assess the size and growth patterns of individual children in the United States. Percentiles rank the position of an individual by indicating what percent of the reference population the individual would equal or exceed. For example, on the weight-for-age growth charts, a 2-year-old girl whose weight is at the 25th percentile, weighs the same or more than 25 percent of the reference population of 5-year-old girls, and weighs less than 75 percent of the 2-year-old girls in the reference population.
Please keep in mind that your child's percentile doesn't really indicate how well they are growing. A child at the 5th percentile can be growing just as well as a child at the 95th percentile. It is more important to look at your child's growth over time. If you are concerned about your child's growth, talk with your Pediatrician.