Enter your child's age and weight to see their percentile on the official WHO Child Growth Standards reference (birth to 5 years). Calculated entirely in your browser — nothing is uploaded or stored.
Please enter a valid date of birth (child must be 0–5 years old) and weight.
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⚠ Educational tool, not medical advice. This calculator uses the WHO Child Growth Standards (2006), which describe optimal growth in healthy breastfed infants and are the standard recommended by WHO and most pediatric bodies for children under 5. A single reading outside the typical range is not a diagnosis — growth trend over multiple visits matters more than one measurement. Always discuss your child's growth with a qualified pediatrician.