Get responsible, actionable guidance for your child's weight status based on their BMI-for-age percentile from official WHO/CDC growth standards.
This tool helps parents and caregivers track a child's weight status in a safe and healthy way. Instead of focusing on weight targets, it determines the child's BMI-for-age percentile and provides responsible guidance for their category.
This tool is for informational purposes ONLY. It does not provide medical advice. Never place a child on a restrictive diet without consulting a pediatrician or registered dietitian. A doctor can provide a personalized plan that supports healthy growth.
Maintained by Live Fitness Check. Last updated: August 9, 2026. How we test our calculators .
Uses a child’s age, sex, height and weight to provide an estimated weight-status tracking result.
The tool calculates the submitted child growth values and interprets them using its configured pediatric reference logic. The calculation uses date of birth, sex, height and weight.
Healthy growth is a pattern over time; one measurement should not be used to diagnose a growth or weight problem. 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.
