IMC criança percentil
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Child BMI Percentile Calculator is a tool used to assess the growth and nutritional status of children and adolescents. It calculates the Body Mass Index (BMI) and compares it to reference values for the child's age and sex, providing a result in percentile. This helps identify if the child is within the ideal weight, below or above the expected for their age and height.
The BMI calculation is done by dividing the child's weight (in kg) by the square of their height (in meters). Then, the result is compared to the World Health Organization (WHO) or Centers for Disease Control and Prevention (CDC) reference charts, which provide BMI values for different ages and sexes. Based on this, it is possible to determine the percentile in which the child falls, which can indicate if they are underweight, overweight or within the expected range.
It is essential to use this calculator in conjunction with other medical assessments, such as verifying the growth curve and evaluating body composition. Additionally, it is crucial to remember that each child has their own growth pace and that BMI is just one of the factors to be considered in health assessments.
Parents and guardians should be aware that the BMI percentile result is not a diagnosis but rather a tool to help identify potential health issues. If the child is outside the expected percentile, it is recommended to consult a pediatrician for a more detailed assessment and proper guidance.
Frequently asked questions
What does the BMI percentile mean in children?
The BMI percentile in children indicates the child's position relative to the ideal weight for their age and height, compared to a reference population.
Which percentiles are considered normal?
Generally, percentiles between 10 and 90 are considered normal. Values below 10 may indicate underweight, while values above 90 may indicate overweight or obesity.
How to interpret the BMI percentile result?
A low percentile may indicate malnutrition, while a high percentile may suggest overweight or obesity. It is essential to consult a pediatrician for a more detailed assessment.
Does the BMI percentile calculator replace medical evaluation?
No, the calculator is an auxiliary tool. A complete medical evaluation is essential for diagnosing and treating any health problems.
How often should I calculate my child's BMI?
It is recommended to calculate the child's BMI during routine medical check-ups, as part of growth and development monitoring.