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Baby milestones: the first year

What most babies do, month by month, from 1 to 12 months — movement, hands and senses, language, and social play.

Every baby develops at their own pace, and normal ranges are wide. These are typical patterns drawn from CDC, AAP, and WHO guidance — general information, not medical advice. If you’re ever worried, or your baby loses skills they used to have, talk to your paediatrician or health visitor.

1-month-old milestones

Getting to know the world — and you.

  • Movement: Lifts their head briefly during tummy time
  • Hands & senses: Focuses on faces about 20–30 cm away
  • Language: Startles at loud sounds and makes small throaty noises
  • Social & play: Calms at a familiar voice or touch

2-month-old milestones

CDC checkup checklist month

The first real smiles.

  • Movement: Holds their head up in tummy time; movements getting smoother
  • Hands & senses: Watches you move and briefly follows a moving toy
  • Language: Coos and makes vowel sounds
  • Social & play: Smiles back at you — the famous social smile

3-month-old milestones

Stronger, chattier, more awake.

  • Movement: Pushes up on forearms in tummy time with a steadier head
  • Hands & senses: Opens and shuts hands; swipes at dangling toys
  • Language: Coos in longer strings and starts to chuckle
  • Social & play: Recognises familiar faces and enjoys back-and-forth "conversations"

4-month-old milestones

CDC checkup checklist month

Laughing, reaching — maybe rolling.

  • Movement: Holds head steady without support; may roll from front to back
  • Hands & senses: Reaches for and grasps toys; brings hands to mouth
  • Language: Laughs out loud and babbles with expression
  • Social & play: Smiles and coos to get your attention

5-month-old milestones

Rolling and reaching with purpose.

  • Movement: Rolls one or both ways; pushes up on straight arms
  • Hands & senses: Moves toys toward the other hand and explores by mouthing
  • Language: Blows raspberries and experiments with new sounds
  • Social & play: May start responding to their own name

6-month-old milestones

CDC checkup checklist month

Sitting up (with a little help).

  • Movement: Sits with support and rolls both ways
  • Hands & senses: Passes objects from hand to hand; rakes small items closer
  • Language: Babbles consonants — "ba", "da", "ma"
  • Social & play: Knows familiar people and loves looking in the mirror

7-month-old milestones

Sitting steadier; stranger awareness begins.

  • Movement: Sits with less and less support; may bear weight on legs when held
  • Hands & senses: Rakes and grabs with the whole hand
  • Language: Responds to their name consistently
  • Social & play: May be wary of strangers; enjoys peekaboo

8-month-old milestones

On the move — each in their own way.

  • Movement: Many babies crawl, scoot, or roll to get around — and some skip crawling entirely
  • Hands & senses: Bangs objects together and looks for dropped things
  • Language: Strings babbles together — "mamama", "bababa"
  • Social & play: Understands games with a pattern, like peekaboo

9-month-old milestones

CDC checkup checklist month

Pulling up and picking up.

  • Movement: Pulls to stand and gets around their own way
  • Hands & senses: Early pincer grasp — picks small things up with thumb and finger
  • Language: Understands "no"; may say "mama" or "dada" (not specific yet)
  • Social & play: May be clingy when you leave — separation anxiety is completely normal

10-month-old milestones

Cruising the furniture.

  • Movement: Cruises along furniture and stands holding on
  • Hands & senses: Deliberate pincer grasp; puts things in and out of containers
  • Language: Copies sounds and gestures
  • Social & play: Waves bye-bye and may clap

11-month-old milestones

Nearly there.

  • Movement: Stands alone for a moment or two
  • Hands & senses: Points at things they want or find interesting
  • Language: Understands simple requests like "give it to me"
  • Social & play: Hands you toys to share the fun

12-month-old milestones

CDC checkup checklist month

One year old — steps and first words.

  • Movement: May take first steps — anywhere from 9 to 18 months is normal
  • Hands & senses: Drinks from an open cup with help and tries to use a spoon
  • Language: Says one to three words with meaning and follows simple directions
  • Social & play: Simple pretend play, like "talking" on a phone; copies what you do

Frequently asked questions

When do babies roll over?

Many babies first roll from front to back around 4 months, and both ways by about 6 months. A wide range is normal.

When do babies sit up?

Most babies sit with support around 6 months and without support between 6 and 8 months.

When do babies crawl?

Crawling typically appears between 7 and 10 months — and some babies skip crawling entirely, going straight to pulling up and cruising.

When do babies say their first word?

First meaningful words usually arrive around 12 months, with babbling ("mama", "dada") in the months before.

When do babies walk?

Anywhere from 9 to 18 months is within the normal range. Most take first steps around their first birthday.

Wondering exactly how many months old your baby is? Try the baby age calculator. Sleep questions too? See sleep needs by age or the bedtime calculator.