Baby Growth Chart By Weeks. This chart should be used for preschool infants and toddlers requiring plotting of growth data in primary or secondary care up to age four. To track your baby’s growth, plot his measurements over a graph and compare them with this chart.

The baby growth charts used in the united kingdom are based on the who (world health organisation) growth standards combined with the average of baby weight and growth data gathered in the uk. It's helpful to know that these charts offer information that your provider can assess in the context of other baby developmental milestones and genetic factors. Baby size by week 40: