Based on weight and height data collected each month, growth charts allow you to understand and follow your baby’s development from birth. There are 2: one for weight and one for height.
In general, the forecasts of these curves vary according to whether the baby is born at term or premature, but also according to other factors such as gender in particular.
Below is an overview of a baby’s average height and weight month after month.
The average height and weight of a 1 month old baby
By the first month of birth, your baby will have gained a few centimeters and grams. Fed exclusively from the breast or from the bottle, it can reach an average size of 54 cm and weigh on average 4 kg. Depending on the sex, a boy will have an average weight of 3 to 5 kg against 2.8 to 4.6 kg for a girl.
The average height and weight of a 2 to 3 month old baby
For babies between the 2e and the 3e months, the growth chart estimates the average height it can reach between 57 to 60 cm. As for the weight, the average is 5 to 5.5 kg. But it can range from 3 to 5.9 kg for girls and 3.7 to 6.3 kg for boys.
The average height and weight of a 4 to 6 month old baby
From 4e months from birth until 6e months, your growing baby gains an average of 500g / month. He will have an average weight evolving from 6 kg to reach 7.4 kg at his 6e month. As for its height, the average for the age range is around 63 cm to 67 cm.
The height and weight of a 7 to 9 month old baby
From 7 months, your baby is on average 68 cm for 7.8 kg. Between the 8e and by the 9th month, it gains an average of 500 g / month and can weigh an average of 7 to 11 kg and be 69 to 71 cm.
The height and weight of a 10 to 12 month old baby
From 10 months to 12 months, we can observe a slowdown in the growth of the baby. He is growing less and his weight gain also slows down. The growth chart estimates its average height between 72 to 74 cm. He can weigh on average 9 kg from his 10e month. And reach about 9.2 to 9.6 kg between the 11e and the 12e month.