Table of contents:
- How to assess a girl's weight
- Up to 2 years: weight according to percentile
- From 2 to 5 years: weight for height
- Over 5 years: Child BMI
The ideal weight of a girl varies according to age and should be taken into account, especially from birth to 2 years of age, and should be checked by the pediatrician every month during the first year of life. This is because a very low or high weight can harm the child's development and growth.
Generally, weight gain in the first 12 months is faster, becoming slower after the 1st year of life, as the child becomes more active, expending more calories, which slows down of weight gain.
It is important to remember that girls' development is not all the same and, therefore, a girl at a certain age may not gain as much weight as another girl of the same age.If this happens, and is causing doubts, it is important to make an evaluation with a pediatrician or nutritionist.
How to assess a girl's weight
To find out if the girl's weight is within normal parameters, up to the age of 18, enter the data in our calculator:
The way to assess the ideal weight for a girl varies according to age:
- Up to 2 years old: weight is verified using percentile curves that show the evolution of weight in each month of life;
- From 2 to 5 years old: weight is evaluated according to the child's height;
- From 5 to 18 years old: the ideal weight is verified according to the BMI for each age.
In the first 2 years of life it is also important that balanced growth occurs and, therefore, in addition to the weight percentile curve, it is also important to check the percentile curves for height and head circumference.
Up to 2 years: weight according to percentile
From birth to 2 years of age, a girl's weight should be assessed according to the percentile. The following table presents the range of values between the 15th percentile and the 85th percentile, according to the World He alth Organization:
|Age||Optimal Weight Range||Age||Optimal Weight Range|
|1 month||3, 2 - 4.8 kg||1 year and 1 month||8, 1 - 10.4 kg|
|2 months||4, 6 - 5.8 kg||1 year and 2 months||8, 3 - 10.6 kg|
|3 months||5, 2 - 6.6 kg||1 year and 3 months||8.5 - 10.9 kg|
|4 months||5, 6 - 7.2 kg||1 year and 4 months||8, 6 - 11.2 kg|
|5 months||6, 1 - 7.8 kg||1 year and 5 months||8, 8 - 11.4 kg|
|6 months||6, 4 - 8, 4 kg||1 year and 6 months||9, 0 -11, 6 Kg|
|7 months||6, 8 - 8, 6 kg||1 year and 7 months||9, 2 -11.9 kg|
|8 months||7.0 - 9.0 kg||1 year and 8 months||9, 4 - 12.2 kg|
|9 months||7, 2 - 9.4 kg||1 year and 9 months||9, 6 - 12.4 kg|
|10 months||7, 4 - 9.6 kg||1 year and 10 months||9, 8 - 12.6 kg|
|11 months||7, 8 - 10 kg||1 year and 11 months||10.0 - 12.8 kg|
|1 year||8.0 - 10.2 kg||2 years||10, 1 - 13.1 Kg|
If the girl's weight is not within the weight range considered normal for her age, it is important to consult a pediatrician or nutritionist, to make a more detailed assessment and assess the need to make some kind of change in diet. Weight can also be influenced by other factors, such as physical activity level and even the genetics of each child.
From 2 to 5 years: weight for height
Between 2 and 5 years old, the ideal weight should be evaluated according to the girl's height, as shown in the following table:
|Girl's height||Optimal Weight Range|
|65 cm||6.5 - 8.0 kg|
|70 cm||7.5 - 9.0 kg|
|75 cm||8, 5 - 10 kg|
|80 cm||9, 5 - 11 kg|
|85 cm||10.5 - 12.5 kg|
|90 cm||11, 5 - 14 kg|
|95 cm||12.5 - 15.2 kg|
|100 cm||14 - 16.7 kg|
|105 cm||15.5 - 18.5 kg|
|110 cm||17 - 20.5 kg|
|115 cm||18, 7 - 23 kg|
|120 cm||20.5 - 25.2 kg|
This table is constructed according to the reference values indicated by the growth curves of the World He alth Organization.
The most important thing is to check if the girl gains weight regularly, because not gaining weight, as well as increasing or decreasing weight suddenly, can be a sign of a he alth problem, such as diabetes or hyperthyroidism, for example. In these cases, consult a pediatrician.
Over 5 years: Child BMI
Use the calculator below to find a girl's ideal weight from 5 years old to 18 years old:
Warning: This calculator is not suitable for calculating weight before 5 years of age, it is better to follow the tables presented above or follow the pediatrician's instructions and the information in the baby book.