The WHO Child Growth Standards

These standards were developed using data collected in the WHO Multicentre Growth Reference Study. The site presents documentation on how the physical growth curves and motor milestone windows of achievement were developed as well as application tools to support implementation of the standards.


  • Length/height-for-age
  • Weight-for-age
  • Weight-for-length/height
  • Body mass index-for-age (BMI-for-age)
  • Head circumference-for-age
  • Arm circumference-for-age
  • Subscapular skinfold-for-age
  • Triceps skinfold-for-age
  • Motor development milestones
  • Weight velocity
  • Length velocity
  • Head circumference velocity