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Expected Weight for Height — Child WHO Reference

Look up the expected weight range for your child's height using WHO growth standards. Enter height and sex to see the 15th–85th percentile range. Optionally compare your child's actual weight to the expected range.

Range: 45–145 cm (18–57")

Compare to expected range

Your inputs never leave your device. All calculations happen locally.

Medical disclaimer: This tool is for informational purposes only. It does not constitute medical advice. Always consult your pediatrician or healthcare provider with any health concerns.

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Weight-for-Height: A Key Growth Indicator

When evaluating a child's nutritional status, pediatricians and dietitians look beyond weight alone. Weight-for-height (or weight-for-length in infants) asks: is this child's weight appropriate for how tall they are?This makes it one of the most useful indicators of acute undernutrition or overnutrition in children under 5.

📉

Wasted

Below 3rd pct

Acute malnutrition — weight significantly low for height. Requires urgent nutritional intervention.

✅

Normal

3rd–97th pct

Weight is proportional to height. This is the expected range for most children.

📈

Overweight

Above 97th pct

Weight high for height. Combined with BMI assessment, may indicate excess adiposity.

How This Compares to Other Growth Indicators

IndicatorWhat It MeasuresBest For
Weight-for-heightWeight relative to current heightAcute malnutrition (0–5 yr)
Weight-for-ageWeight relative to chronological ageGeneral growth monitoring
Height-for-ageHeight relative to chronological ageChronic undernutrition (stunting)
BMI-for-ageWeight/height² relative to age normsOverweight/obesity screening (2+)

⚠️ Important Limitations

Weight-for-height is a screening tool, not a diagnosis. Body build, muscle mass, ethnicity, and growth velocity all influence interpretation. Children with genetic syndromes or skeletal dysplasias may not fit standard references. Always discuss growth concerns with your pediatrician before drawing conclusions.

Frequently Asked Questions

Why is weight-for-height more useful than weight-for-age?

Weight-for-age doesn't account for a child's actual size. A taller child is naturally expected to weigh more than a shorter child of the same age. Weight-for-height (or weight-for-length in infants) evaluates whether a child's weight is proportional to their height, making it more clinically meaningful for nutritional status assessment.

What does it mean if my child is below the expected weight range for their height?

Being below the 15th percentile weight-for-height may indicate undernutrition or inadequate weight gain relative to height. Common causes include inadequate caloric intake, malabsorption conditions (like celiac disease), or high energy expenditure. A pediatrician evaluation is recommended.

What does it mean if my child is above the expected weight range for their height?

Being above the 85th percentile weight-for-height suggests excess weight relative to height. This is used alongside BMI-for-age to assess overweight and obesity risk in children over 2. Discuss with your pediatrician before drawing any conclusions — muscle mass and body build also play a role.

What reference data does this tool use?

This tool uses WHO Child Growth Standards for children 0–5 years (based on the Multicentre Growth Reference Study) and WHO Reference 2007 for older children. The ranges shown represent the 15th to 85th percentile, which is the commonly cited 'expected' weight range for a given height.

Is this the same as looking up weight-for-BMI?

No. BMI (weight divided by height squared) is a different calculation used for children over 2. Weight-for-height is the primary nutritional assessment tool for infants and toddlers because it directly expresses how weight tracks with linear growth. After age 5, BMI-for-age becomes the preferred metric.

My child's weight is at the median for their height but their weight-for-age percentile is low — is that okay?

Yes, this is a common scenario for short children. A child with a low weight-for-age percentile who is also short (low height-for-age) may have a perfectly appropriate weight for their height. Weight-for-height is the more relevant metric in this case, and it often implies adequate nutritional status.

Can I use this tool for premature babies?

For premature infants, corrected age should be used for any growth assessment until 24–36 months. Additionally, growth norms for very preterm infants may differ and require specialized NICU-based growth charts such as Fenton or Olsen charts. Consult your neonatologist or pediatrician for guidance.

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