BMI Calculator for Kids
Children & Teen BMI Percentile Calculator
Calculate BMI percentile for children and teens aged 2-20 years with personalized health recommendations.
Child Information
Ages 2-20 years
kg
cm
About Children's BMI
BMI for children is age and gender-specific. It's expressed as a percentile that shows how a child's BMI compares to other children of the same age and gender.
BMI Percentile Ranges
< 5th:Underweight
5th - 85th:Healthy
85th - 95th:Overweight
≥ 95th:Obese
Important Note
This calculator provides estimates. Always consult with a pediatrician or healthcare provider for accurate assessment and personalized advice for your child's health.
Why BMI Percentiles for Children?
Children's body composition changes as they grow. BMI percentiles account for these normal changes in body fat with age and gender.
Key Points:
- BMI changes with age in children
- Boys and girls have different growth patterns
- Percentiles compare to peers of same age/gender
- Regular monitoring tracks growth trends
Healthy Habits for Kids
- 60 minutes of physical activity daily
- 5 servings of fruits and vegetables per day
- Limit sugary drinks and snacks
- 9-12 hours of sleep for school-age children
- Family meals together when possible
- Limit screen time to 2 hours or less
- Drink plenty of water throughout the day
- Encourage outdoor play and activities
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