BMI Calculator for Kids

Calculate BMI for children ages 2-18 with age-appropriate guidance

BMI for Children is Different

Unlike adults, children's BMI is interpreted using age and gender-specific percentiles. A BMI that's healthy for a 10-year-old may not be healthy for a 6-year-old.

Healthy Habits for Kids

  • Physical activity: 60 minutes daily of play, sports, or active games
  • Screen time: Limit to 1-2 hours per day
  • Sleep: 9-12 hours for ages 6-12
  • Nutrition: Whole grains, fruits, vegetables, and lean protein

When to See a Doctor

If your child's BMI is outside the healthy range, consult a pediatrician before making major dietary changes. Children have different nutritional needs than adults.