Provided by Hesapstan, this calculator compares a 0-5 year length or height measurement with WHO Child Growth Standards 2006 length/height-for-age LMS tables.
Measurement position
The WHO standard uses recumbent length for children under 24 months and standing height for children 24 months and older. The selected position is shown in the result.
How it works
The calculator finds the exact number of calendar days from birth to measurement, selects the WHO L, M and S values for that sex and age day, then applies the LMS z-score formula.
Medical safety
Measurement technique, prematurity, illness, nutrition and growth velocity may require clinical assessment. This result does not replace pediatric follow-up.
Frequently Asked Questions
Which source is used?
The calculator uses WHO Child Growth Standards 2006 expanded z-score LMS tables for length/height-for-age.
Why separate recumbent length and standing height?
WHO standards use recumbent length for younger children and standing height for older children, so the selected measurement position is shown.
What age range is supported?
The official table supports 0-1856 days, roughly age 0-5 years.