What is the average length of a newborn baby?
The length of a newly born baby is dependent on a number of factors. For instance, a baby who is born 2 weeks too late is often taller than a baby who is born 2 weeks too early. Baby boys are also often taller than baby girls.
In the description below you can find an overview of the average length of newborn babies:
- Average baby length boys:
The average length of a newly born baby boy is 1ft 7.6in (49.2cm).
The length normally varies between 1ft 6.9in (47 cm) and 1ft 9.3in (54 cm).
- Average baby length girls:
The average length of a newly born baby girl is 1ft 7.4in (49.2 cm).
The length normally varies between 1ft 6.1in (46 cm) and 1ft 9.3in (54 cm).
What is the average baby length per month?
Babies grow a lot in the first months. That's why it's important to monitor the baby height per month, or even per week. In the table below you can find the average baby length per month, separated for boys and girls.
|Age:||Average baby boy length:||Average baby girl length:|
|1 month||1ft 9.6in (54.8 cm)||1ft 9.2in (53.8 cm)|
|2 months||1ft 11in (58.4 cm)||1ft 10.1in (56.1 cm)|
|3 months||2ft 0.2in (61.4 cm)||1ft 11.6in (59.9 cm)|
|4 months||2ft 1.2in (64 cm)||2ft 0.5in (62.2 cm)|
|5 months||2ft 2in (66 cm)||2ft 1.3in (64.2 cm)|
|6 months||2ft 2.6in (67.5 cm)||2ft 2.1in (66.4 cm)|
|7 months||2ft 3.2in (69 cm)||2ft 2.5in (67.3 cm)|
|8 months||2ft 3.8in (70.6 cm)||2ft 3.1in (68.8 cm)|
|9 months||2ft 4.3in (71.8 cm)||2ft 3.6in (70.1 cm)|
|10 months||2ft 4.8in (73.1 cm)||2ft 4.2in (71.6 cm)|
|11 months||2ft 5.3in (74.4 cm)||2ft 4.7in (72.8 cm)|
|12 months||2ft 5.8in (75.7 cm)||2ft 5.2in (74.1 cm)|
How much do babies grow per day?
As you can see above, babies have often grown on average 9.8in (25 cm) in the first year. This calculates to about 0.02in (0.6 mm) per day! At the age of 1, boys are on average 2ft 5.5in (75cm) tall and baby girls 2ft 5.1in (74cm) tall. In their second year they grow a little less rapidly (about 0.015in (0.4 mm) per day), which is 5.9 inches (15 cm) per year. The total inches children grow per year declines after they get older.