WHO standards for gross motor milestones based on a global study of healthy children in 6 countries. Provides windows of achievement for fundamental motor milestones from birth to 2 years.
Sitting without support — child sits up with head steady, without using arms or hands for balance
4 months – 9 months— WHO MGRS — Sitting without support: 3.8–9.2 months
Standing with assistance — child stands upright while holding on to a stable object with both hands
5 months – 11 months— WHO MGRS — Standing with assistance: 4.8–11.4 months
Hands-and-knees crawling — child moves forward on hands and knees (creeping pattern)
5 months – 1yr 1mo— WHO MGRS — Hands-and-knees crawling: 5.2–13.5 months
Walking with assistance — child walks upright while holding on to a stable object with one or both hands
6 months – 1yr 2mo— WHO MGRS — Walking with assistance: 5.9–13.7 months
Standing alone — child stands for at least 10 seconds without holding on to anything or anyone
7 months – 1yr 5mo— WHO MGRS — Standing alone: 6.9–16.9 months
Walking alone — child takes at least 5 independent steps without holding on to anything or anyone
8 months – 1yr 6mo— WHO MGRS — Walking alone: 8.2–17.6 months
Use these milestones to guide your family's activities — all free to get started.