WHO growth standards

Z-scores, percentiles and status bands from birth to 19 years, and the combined assessment.

Routes in this category

• GET /bmi-for-age - List BMI-for-age reference rows (-3SD to +3SD cut-offs)
• POST /bmi-for-age/bulk - Bulk-create BMI-for-age rows (admin)
• GET /bmi-for-age/classify - Classify BMI-for-age for a child or adolescent (5y 1m to 19y 0m)
• GET /muac-for-age - List WHO arm circumference-for-age rows (cm, with L/M/S)
• POST /muac-for-age/bulk - Bulk-create MUAC-for-age rows (admin)
• GET /muac-for-age/classify - Classify arm circumference (MUAC) for age, 3 to 60 months
• GET /muac/classify - Classify MUAC with fixed age-group cut-offs (6 months to adult)
• GET /length-height-for-age - List WHO length/height-for-age rows (cm, with L/M/S)
• POST /length-height-for-age/bulk - Bulk-create length/height-for-age rows (admin)
• GET /length-height-for-age/classify - Classify length/height-for-age (stunting), birth to 19 years
• GET /weight-for-age - List WHO weight-for-age rows (kg, with L/M/S)
• POST /weight-for-age/bulk - Bulk-create weight-for-age rows (admin)
• GET /weight-for-age/classify - Classify weight-for-age (underweight), birth to 10 years
• GET /weight-for-length-height - List WHO weight-for-length/height rows (kg, with L/M/S)
• POST /weight-for-length-height/bulk - Bulk-create weight-for-length/height rows (admin)
• GET /weight-for-length-height/classify - Classify weight-for-length/height (wasting), birth to 5 years
• GET /bmi-for-age-under-5 - List WHO BMI-for-age rows, birth to 5 years (kg/m2, with L/M/S)
• POST /bmi-for-age-under-5/bulk - Bulk-create BMI-for-age (under 5) rows (admin)
• GET /bmi-for-age-under-5/classify - Classify BMI-for-age, birth to 5 years
• GET /hc-for-age - List WHO head circumference-for-age rows (cm, with L/M/S)
• POST /hc-for-age/bulk - Bulk-create head circumference-for-age rows (admin)
• GET /hc-for-age/classify - Classify head circumference-for-age, birth to 5 years
• GET /growth/assess - Combined WHO growth assessment (every applicable indicator in one call)

More in API Reference

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• Meals, intake & food log - Analyze meals and recipes, assess intake against dietary reference intakes, and keep a food diary.
• WHO growth standards - Z-scores, percentiles and status bands from birth to 19 years, and the combined assessment.
• Growth velocity & preterm - WHO increment bands for infants and Fenton preterm growth charts.
• Diets, exchange & formulas - Glycaemic index, food exchange lists, renal nutrition and enteral formulas.
• Energy & drug interactions - Energy requirements and known drug-nutrient interactions.
• Condition-specific nutrition - Calculators for diabetes and carbohydrate counting, kidney disease, pregnancy and lactation, children, sports and weight management.
• Clinical nutrition support - Critical care, burn, refeeding, enteral feeding and energy stress factor calculators.
• Research & epidemiology - Harmonise study data, analyse outcomes and surveys, audit data quality and export analysis-ready datasets.
• FHIR R4 - Stateless growth evaluation and the Nutrition Care Process as FHIR resources.
• AI, knowledge & memory - Retrieval-augmented answers and session memory for assistants.
• Keys & platform - API keys, developer keys, batching, health and metadata.
• More routes - Other documented routes.