18 months

18 Month Old Baby Milestones: Running, Talking & Tantrums

At 18 months, your toddler is a whirlwind of energy and curiosity. They are running, climbing, and rapidly adding words to their vocabulary. This age brings exciting growth — and some challenges like tantrums and boundary-testing. Here's your guide to navigating this stage.

What's typical at 18 months

Movement & Physical
7
  • Walks well and may start to run
  • Pulls toys while walking and pushes wheeled toys
  • Climbs onto and off furniture unassisted
  • Walks up stairs with help and support
  • Scribbles spontaneously with crayons
  • Builds towers of 3-4 blocks
  • Begins to kick and throw a ball
Communication & Language
6
  • Says 10-20 words and learns new words weekly
  • Points to familiar objects and people when named
  • Follows two-step instructions ("Pick up the toy and give it to me")
  • Shakes head for "no" and nods for "yes" consistently
  • Copies words and tries to sing simple songs
  • Asks for help using words or gestures
Social & Emotional
6
  • Plays simple pretend games (feeding doll, talking on phone)
  • Shows affection and seeks comfort when upset
  • May cling to parents in new situations
  • Shows excitement about seeing familiar people
  • Tests boundaries and has tantrums when frustrated
  • Shows preference for certain toys, people, or routines
Thinking & Learning
6
  • Points to pictures in books when named
  • Shows understanding of object use (comb, cup, phone)
  • Sorts shapes and colors with increasing skill
  • Finds hidden objects even under multiple covers
  • Shows curiosity and explores independently
  • Remembers routines and anticipates what comes next
Feeding & Self-Care
6
  • Uses a spoon and fork with some spills
  • Drinks from a cup with fewer spills
  • Removes loose clothing and tries to put on simple items
  • Shows clear food preferences and may be picky
  • Feeds self most of the time
  • Helps with simple tasks like wiping a table

Activities to try this week

Ball play

10-15 min

Roll a large soft ball back and forth. Encourage kicking and throwing into a box. Builds gross motor skills, hand-eye coordination, and turn-taking.

Picture naming

10-15 min, daily

Look at picture books together and name familiar objects. Ask "Where's the cat?" and praise when they point. Builds vocabulary and comprehension.

Pretend kitchen

15-20 min

Set up a simple pretend kitchen or doctor kit. Model actions like stirring a pot or checking a doll's temperature. Encourage imitation and creativity.

Shape and color sorting

10 min

Provide a simple shape sorter or colored cups. Demonstrate matching and let them try. Builds early math skills, fine motor control, and problem-solving.

Common questions

How many words should an 18-month-old say?

Most 18-month-olds say 10-20 meaningful words and are rapidly adding new ones. They typically understand 50-100 words. If your child says fewer than 6 words or doesn't imitate sounds, consult your pediatrician about a speech evaluation.

Why does my 18-month-old have so many tantrums?

Tantrums peak between 18-24 months because toddlers have strong desires but limited language and impulse control. Stay calm, offer comfort, use distraction, and set consistent boundaries. Label emotions ("You're mad because...") to build emotional awareness.

When should I potty train my 18-month-old?

Most children aren't ready for potty training until 24-36 months. Signs of readiness include staying dry for 2+ hours, showing interest in the toilet, and communicating when wet. At 18 months, you can introduce the concept, but don't pressure.

How much sleep does an 18-month-old need?

Typically 11-14 hours total: 10-12 hours at night plus 1-2 daytime naps (totaling 1-3 hours). Many 18-month-olds still take 2 naps, though some transition to one. Sleep regression can occur around 18 months due to developmental leaps.

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