Because children and teens are growing, BMI values must be expressed relative to other children of the same sex and age. BMI-for-age percentiles indicate how your child's BMI compares to BMIs of children of the same sex and age in the reference population used to create the CDC growth charts. Key Features: - Instant BMI Calculation – Quickly determine BMI percentile, and BMI category for children and teens 2 through 19. - Metric & Imperial Units – Effortlessly switch between unit systems for convenience. - Generate & Export Reports – Easily save and share BMI-for-Age Percentile Reports - User-Friendly & Precise – Designed for speed, accuracy, and ease of use. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/