Month 12

12 Month Old Baby Development

Congratulations! Your baby is 1 year old! What an incredible year.

7.9 - 12.0 kgWEIGHT
70 - 80 cmLENGTH
44 - 49 cmHEAD SIZE

Ranges cover most babies this age. To see where your baby sits, use the percentile calculator.

What can a 12 month old do?

  • May start walking independently
  • Says 1-3 words
  • Tries eating with a spoon
  • Plays simple games — tossing balls, stacking blocks
  • Understands simple commands — "give", "show"
  • Imitates using objects
  • Emotional bonds strengthen — hugs, kisses

Feeding

  • You can switch to whole cow's milk
  • Honey is now allowed
  • Regular 3 meals + 2 snacks
  • Aim to stop bottles
  • Support self-feeding
  • Create a family mealtime habit
  • Increase water — prefer water over juice

Sleep

Sleeps 11-14 hours a day, typically 1 daytime nap.

Tips for you

  • Celebrate the first birthday!
  • Congratulate yourself — you've been a wonderful mom!
  • Consider a photo album of the first year
  • Get the 1-year checkup — height, weight, development
  • Review the vaccine schedule with your pediatrician
  • Keep the sleep routine consistent
  • Recheck home safety for the second year
Tip of the month: Preserve this amazing year with a photo album!

Frequently asked questions

How much should a 12 month old weigh?

A typical weight range for a 12 month old is 7.9 - 12.0 kg, with length around 70 - 80 cm and head circumference around 44 - 49 cm. Following their own growth curve matters more than any single measurement.

How much does a 12 month old sleep?

Sleeps 11-14 hours a day, typically 1 daytime nap.

What should a 12 month old be doing?

May start walking independently. Says 1-3 words. Tries eating with a spoon. Plays simple games — tossing balls, stacking blocks. Every baby develops at their own pace, and differences of a few weeks are normal.

Every baby develops at their own pace. This is general guidance; talk to your pediatrician about any concerns.

Baby development by month