Easily track your child’s growth by comparing their weight, height, and BMI to standardized growth charts from the CDC and WHO for children aged 2 to 20.
A growth percentile is a standard measure used by pediatricians to assess a child's growth compared to other children of the same age and gender. This calculator plots your child's measurements on official growth charts to determine their weight-for-age, height-for-age, and BMI-for-age percentiles.
For example, if your child is in the 40th percentile for height, it means they are taller than 40% of children their age and gender, and shorter than 60%. The key is not the number itself, but tracking the trend of this number over time.
| BMI-for-Age Percentile | General Weight Status Category |
|---|---|
| Less than 5th | Underweight |
| 5th to less than 85th | Healthy Weight |
| 85th to less than 95th | Overweight |
| Equal to or greater than 95th | Obesity |
Growth charts are a valuable tool, but they don't tell the whole story. A single measurement does not define your child's health. Factors like genetics, nutrition, and overall well-being are also important. Always discuss your child's growth chart results with a pediatrician for a complete and professional assessment.
Maintained by Live Fitness Check. Last updated: August 9, 2026. How we test our calculators .
Estimates how a child’s measurement compares with an age- and sex-based reference distribution.
The calculator uses the entered age, sex and measurement values with its configured growth-reference calculation to return an estimated percentile. The calculation uses date of birth, sex and the growth measurements requested by the calculator.
Growth should be interpreted over time and in clinical context rather than from one percentile alone. Use the number as an estimate and consider professional advice when the result may affect health, treatment, pregnancy, nutrition, exercise safety or another important decision.
