Average weight (boy / girl) 10.3 / 9.6 kg
Sleep in 24 hours 11–14 h, 1–2 naps
Feeding Family foods + milk
🌱 Development at 15 monthsTakes a few steps on their own Uses fingers to feed themselves Points to ask for something or get help Says one or two words besides mama/dada 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.
🍼 FeedingFamily meals together; avoid choking foods like whole nuts, whole grapes and popcorn 😴 Sleep and teethTotal sleep: 11–14 h in 24 hours, usually 1–2 naps (National Sleep Foundation and American Academy of Sleep Medicine ranges). Teeth that often come through around now: lower side incisors, first molars. 💉 Vaccines due at 15 monthsYour paediatrician may group doses differently. Keep the vaccination card safe.
💡 Tips for this month15-month vaccines are due (see below) Give simple jobs: putting toys in a box ← 14 months 16 months → ❓ Frequently asked questions
What should a 15-month-old be doing? Most 15-month-olds: takes a few steps on their own; uses fingers to feed themselves; points to ask for something or get help; says one or two words besides mama/dada.
How much should a 15-month-old weigh? The WHO median is 10.3 kg for boys and 9.6 kg for girls; the normal range is wide (see the table).
How much should a 15-month-old sleep? 11–14 h in 24 hours including 1–2 naps.
🔁 Nearby months