Developmental milestones
15 months
Tick what your child already does. Nothing is saved; leaving the page clears it.
CDC milestone check
Tick what your child already does
0 of 13 ticked
The 2022 revision moved the bar from what 50% of children do to what about 75% or more do, so a milestone a child has not reached is worth raising sooner than the older lists implied.
Missing one does not mean something is wrong. What it is for: read those items out at the next well-child visit. This page does not diagnose, and it is not a substitute for a standardized, validated screening tool.
China’s warning signs, alongside
China’s nearest checkpoint is more than a month away from this one, so there is nothing to place alongside.
WHO motor attainment windows
- Standing alone: 6.9–16.9 months
- Walking alone: 8.2–17.6 months
Where the measurements sit
Development is half of it; the body is the other half. This works out your own child’s height and weight position, entered once and used site-wide.
Everything is computed in your browser. What you type is never sent to a server and is never stored.
Where this page’s data comes from
- CDC Learn the Signs. Act Early. milestone checklists (revised February 2022)
- WHO Motor Development Milestones (2006, MGRS motor development study)