Average weight (boy / girl) 11.3 / 10.6 kg
Sleep in 24 hours 11–14 h, 1 nap
Feeding Family foods + milk
🌱 Development at 20 monthsStarts joining two words ("more milk") Copies housework Builds a tower of three or four blocks Shows defiance as well as affection These are things most children (about 3 in 4) can do by this age. Babies born early may reach them later — use their corrected age.
📏 Growth: WHO weight, length and head sizeAny steady curve within this range is normal; what matters is that your baby follows their own curve over time.
🍼 FeedingLet your toddler choose between two healthy options to reduce food fights 😴 Sleep and teethTotal sleep: 11–14 h in 24 hours, usually 1 nap (National Sleep Foundation and American Academy of Sleep Medicine ranges). Teeth that often come through around now: canines. 💉 Vaccines due at 20 monthsNo routine vaccine is scheduled this month on the IAP or UIP schedules. Check that earlier doses are complete.
💡 Tips for this monthKeep routines predictable; transitions are easier with a warning Daily outdoor play builds strength and coordination ← 19 months 21 months → ❓ Frequently asked questions
What should a 20-month-old be doing? Most 20-month-olds: starts joining two words ("more milk"); copies housework; builds a tower of three or four blocks; shows defiance as well as affection.
How much should a 20-month-old weigh? The WHO median is 11.3 kg for boys and 10.6 kg for girls; the normal range is wide (see the table).
How much should a 20-month-old sleep? 11–14 h in 24 hours including 1 nap.
🔁 Nearby months