Boys 7.9 kg (17.5 lb)
Boys 67.6 cm (26.6 in)
50th percentile (median) on the WHO Child Growth Standards. Healthy babies vary widely around these numbers.
Development at 6 months
A big milestone month. Many babies are ready to start solid foods. They know familiar people, laugh often and may be close to sitting on their own.
CDC milestones most babies reach by 6 months
- Knows familiar people
- Likes to look at themselves in a mirror
- Laughs
- Takes turns making sounds with you
- Blows raspberries
- Makes squealing noises
- Puts things in their mouth to explore them
- Reaches to grab a toy they want
- Closes lips to show they do not want more food
- Rolls from tummy to back
- Pushes up with straight arms when on tummy
- Leans on hands to support themselves when sitting
Feeding
Around 6 months is the usual time to start solid foods alongside breast milk or formula. Start with iron-rich foods such as iron-fortified cereal, meat, beans or lentils, and soft vegetables and fruit. Offer common allergenic foods, such as egg and peanut in a safe form, early on: ask your doctor first if your baby has severe eczema or a known allergy. Offer small sips of water in an open cup with meals. Do not give honey before 12 months.
Sleep
Most babies need 12 to 16 hours of sleep in 24 hours and take 2 or 3 naps. 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
- Book the 6-month check-up and vaccinations.
- Start solid foods if your baby shows signs of readiness.
- Ask about a first dental visit: the AAP recommends one by the first birthday, or when the first tooth appears.
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.