This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

WHO 0–5 years

Weight, length/height, head circumference, BMI and weight-for-height according to WHO 2006

Child

Sex

male female

Gestational age at birth (optional, preterm infants)

Age

Birth and measurement date Age directly

Date of birth

Measurement date

Years

Months

Weeks

Days

Use corrected age – for preterm infants the weeks until term are subtracted (up to an age of 24 months)

Measured values

Weight (kg)

Length/height (cm)

Head circumference (cm)

Decimal separator comma or period. Empty fields are skipped.

Measurement position

Length/height measured

WHO: supine under 24 months, standing from 24 months. Values measured in the other position are converted by 0.7 cm.

Reset Reference range: 0–5 years

About this calculator

The complete WHO Child Growth Standards 2006 in daily resolution: weight, length/height, head circumference and BMI for age, and weight for length/height.

In preterm infants, if a gestational age is given, age is corrected up to month 24 of life for the missing weeks up to 40+0. The z-score (SDS) describes the deviation from the median in standard deviations; the percentile the proportion of the reference population with a smaller value.

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Reference and license

WHO 2006 Expanded – 0–5 years.
WHO Multicentre Growth Reference Study Group. WHO Child Growth Standards: Methods and development. Geneva: WHO; 2006 (length/height, weight, BMI) and 2007 (head circumference, mid-upper arm circumference, skinfolds). License: WHO; tables taken from the R package childsds (GPL applies to the software, not to the WHO data). Source
Below 24 months the WHO chart assumes length measured lying down, and from 24 months height measured standing. If measured differently, state the measurement position – the calculator then converts by 0.7 cm (standing → lying +0.7 cm, lying → standing −0.7 cm).
WHO Weight-for-Length – 45–110 cm length.
WHO Multicentre Growth Reference Study Group. WHO Child Growth Standards: Methods and development. Geneva: WHO; 2006 (length/height, weight, BMI) and 2007 (head circumference, mid-upper arm circumference, skinfolds). License: WHO; tables taken from the R package childsds (GPL applies to the software, not to the WHO data). Source
WHO Weight-for-Height – 65–120 cm height.
WHO Multicentre Growth Reference Study Group. WHO Child Growth Standards: Methods and development. Geneva: WHO; 2006 (length/height, weight, BMI) and 2007 (head circumference, mid-upper arm circumference, skinfolds). License: WHO; tables taken from the R package childsds (GPL applies to the software, not to the WHO data). Source

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Note

Calculation aid for healthcare professionals. Percentiles and z-scores describe the position of a measured value in the reference population; clinical assessment remains with the treating physician.

Review date of the German original: 2026-11-05 · Methodology

For parents (in German): Percentile calculator (kinderarzt.net)

Frequently asked questions

WHO 0–5 years: What does this calculator compute?

The complete WHO Child Growth Standards 2006 in daily resolution: weight, length/height, head circumference and BMI for age, and weight for length/height.

WHO 0–5 years: Which sources is this calculator based on?

WHO Multicentre Growth Reference Study Group. WHO Child Growth Standards: Methods and development. Geneva: WHO; 2006 (length/height, weight, BMI) and 2007 (head circumference, arm circumference, skinfolds).