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health.pediatric-weight-age Calculator
Calculates weight-for-age z-score, WHO median at this age for pediatric weight age applications. Uses ideal = age(months)×0.2 + 9 kg with inputs: actual weight. Used by clinicians and patients for clinical assessments and health monitoring.
Inputs
Age Months
Age in completed years. Many health and fitness formulas adjust for age.
Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Sex
Reference formula or conversion factor shown for context.
Results
weight-for-age z-score (approx)
Number of standard deviations a value is from the mean. |z| below 2: within normal range. |z| above 2: in the outer 5% of the distribution. |z| above 3: in the outer 0.3%.
WHO median at this age
The middle value of the sorted dataset.
weight status
Current state of the system, process, or metric — typically pass/fail, healthy/warning/critical, or a descriptive classification.
rough ideal weight (kg)
The computed weight (gravitational force) or mass.
formula (12-60 months)
The result expressed in months. Divide by 12 to convert to years.
official growth charts
The absolute increase in value over the period. Growth = final value minus initial value.