Milestone Range Sitting without support 3.8 months to 9.2 months Standing with assistance 4.8 months to 11.4 months Crawling (5% of kids never do) 5.2 months to 13.5 months Walking with help 5.9 months to 13.7 months Standing alone 6.9 months to 16.9 months Walking alone 8.2 months to 17.6 months
