Boys 6.4 kg (14.1 lb)
Boys 61.4 cm (24.2 in)
50th percentile (median) on the WHO Child Growth Standards. Healthy babies vary widely around these numbers.
Development at 3 months
Your baby is becoming more alert and social. Head control is improving, and many babies bring their hands to their mouth and follow moving objects with their eyes.
What you might notice
- Holds head steadier when supported upright
- Follows a moving toy with their eyes
- Coos and makes vowel sounds
- Brings hands to mouth
- Pushes up on forearms during tummy time
Feeding
Most babies still feed every 3 to 4 hours. Growth spurts can make your baby hungrier for a few days.
Breast milk or formula is all your baby needs until around 6 months. Feed when your baby shows hunger cues, such as rooting, sucking on hands or turning towards the breast. Breastfed babies usually need a vitamin D supplement: the AAP recommends 400 IU a day. Work out formula amounts with our Baby Feeding Calculator.
Sleep
Many babies sleep 14 to 16 hours in total, including several naps. A simple bedtime routine, such as a feed, a song and lights down, can help. Always put your baby down on their back, on a firm, flat surface with no pillows, bumpers or loose blankets. The AAP recommends sharing your room, but not your bed, for at least the first 6 months.
Your checklist this month
- Offer toys to look at and reach for.
- Keep tummy time going for a little longer each day.
- Contact your doctor if your baby is not yet following things with their eyes.
Is your baby growing well?
Check weight, length and head size on WHO charts with our Baby Growth Percentile Calculator, or work out your baby’s exact age with the Baby Age Calculator.