The typical 4-year-old child will demonstrate certain physical and mental skills. These skills are called developmental milestones.

All children develop a little differently. If you are concerned about your child’s development, talk to your child’s health care provider.

During the fourth year, a child typically:

  • Gains weight at the rate of about 6 grams (less than one quarter of an ounce) per day or one third to one half pound (about 180 grams) per month
  • Weighs 40 pounds (18.14 kilograms) and is 40 inches (101.6 centimeters) tall
  • Has 20/20 vision
  • Sleeps 11 to 13 hours at night, most often without a daytime nap
  • Grows to a height that is double the birth length
  • Shows improved balance
  • Hops on one foot without losing balance
  • Throws a ball overhand with coordination
  • Can cut out a picture using scissors
  • May still wet the bed

The typical 4-year-old:

  • Has a vocabulary of more than 1,000 words
  • Easily puts together sentences of 4 or 5 words
  • Can use the past tense
  • Can count to 4
  • Will be curious and ask a lot of questions
  • May use words they do not fully understand
  • May begin using vulgar words
  • Learns and sings simple songs
  • Tries to be very independent
  • May show increased aggressive behavior
  • Talks about personal family matters to others
  • Commonly has imaginary playmates
  • Has an increased understanding of time
  • Is able to tell the difference between two objects, based on things like size and weight
  • Lacks moral concepts of right and wrong
  • Rebels if too much is expected of them

As the parent of a 4-year-old, you should:

  • Encourage and provide space for physical activity.
  • Show your child how to participate in and follow the rules of sporting activities.
  • Encourage play and sharing with other children.
  • Encourage creative play.
  • Teach your child to do small chores, such as setting the table.
  • Read together.
  • Limit screen time (television and other media) to 2 hours a day of quality programs.
  • Expose your child to different stimuli by visiting local areas of interest.

Normal childhood growth milestones – 4 years; Growth milestones for children – 4 years; Childhood growth milestones – 4 years; Well child – 4 years.

American Academy of Pediatrics Committee on Practice & Ambulatory Medicine. 2024 Recommendations for preventive pediatric health care: Policy statement. Pediatrics. 2024;154(1):e2024067201. PMID: 38910527 pubmed.ncbi.nlm.nih.gov/38910527/.

Carter RG, Feigelman S. The preschool years. In: Kliegman RM, St. Geme JW, Blum NJ, et al, eds. Nelson Textbook of Pediatrics. 22nd ed. Philadelphia, PA: Elsevier; 2025:chap 25.

Marcdante KJ, Kliegman RM, Schuh AM. Normal development. In: Marcdante KJ, Kliegman RM, Schuh AM, eds. Nelson Essentials of Pediatrics. 9th ed. Philadelphia, PA: Elsevier; 2023:chap 7.

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