OhMyCalc

Pediatric BMI Calculator

Calculate BMI for children and teens with age-appropriate category interpretation.

How to Use the Pediatric BMI Calculator

  1. Enter the required values into the input fields.
  2. Click the Calculate button to see the results.
  3. Review the output values and interpretations below.

Referência Rápida

DePara
Underweight< 5th percentile
Healthy weight5th–85th percentile
Overweight85th–95th percentile
Obese≥ 95th percentile

Casos de Uso

Fórmula

Formula: BMI = Weight (kg) / Height (m)². For children 2-19, results are interpreted using CDC age-sex percentile charts.

Perguntas Frequentes

Why is pediatric BMI different from adult BMI?
Children's body composition changes with age and differs by sex. Pediatric BMI is interpreted using age- and sex-specific percentile charts rather than fixed cutoffs.
What percentile is healthy for children?
A BMI between the 5th and 85th percentile is considered healthy. Below the 5th is underweight. Between 85th and 95th is overweight. At or above 95th is obese.
At what age should I use adult BMI?
Adult BMI categories apply from age 20 and older. For ages 2-19, use the pediatric BMI with percentile interpretation.