To know which size of clothing to choose according to the age of baby, you must also refer to his height and weight. We guide you, thanks to this practical table of the correspondences of the sizes of baby.
At birth, the clothing sizes do not correspond to the age of the newborn and all infants do not necessarily wear the same size indicated on the label of baby clothes. Some are born prematurely, others with the size of a one-month-old baby, which explains, among other things, that the bodysuits, pajamas and pretty little sets for newborns do not always correspond to them. It is therefore difficult to navigate for the parents, or the entourage who wishes to offer beautiful sets as a birth gift. Especially since baby grows quickly, and bodysuits don’t last very long. To know the ideal size of clothing, which will suit baby, rely on our correspondence table, which also takes into account baby’s height and weight.
Baby clothes size correspondence table
The age label of baby clothes is not enough, it is also important to take a look at the corresponding size in cm and compare it to that of our baby. Besides his stature and age, your child’s weight can also affect the size of the garment. Thus a tall, slender 1-year-old baby will sometimes wear the same size as a fuller 9-month-old baby. THE referential table below should help you see more clearly.
| Age | Midsized | Average weight | Clothing sizes |
| Large Premature | 40cm | 2kg | 40 cm / 00 months |
| Premature | 44cm | 2.5kg | 45 cm / 0 months |
| Birth | 50cm | 3.3kg | 50 cm / Birth |
| 1 month | 54-56cm | 4kg | 54cm / 1 month |
| 3 months | 60 – 62cm | 5 to 6 kg | 60cm / 3 months |
| 6 months | 67 – 78cm | 7 to 8 kg | 67cm / 6 months |
| 9 months | 71cm | 8 to 9 kg | 71 cm / 9 months |
| 12 months | 74cm | 9 to 10 kg | 74cm / 12 months |
| 18 months | 81cm | 11kg | 81cm / 18 months |
| 24 months | 86cm | 12kg | 86cm / 24 months |
| 36 months | 94cm | 14kg | 94cm / 3 years old |
How to choose the right size for baby clothes?
Our advices : if you are in doubt about the size of the bodysuit or pants you are about to buy, always take the size above, because baby is growing at full speed.
Also consider seasonality. For example, if you want to buy or give a larger item of clothing for the next few months, check that baby will be able to wear it at this time of year. Indeed, there is no point in buying a big sweater or a coat in size 12 months, if you will be in the middle of summer when baby will be that size. It is therefore a question of anticipating, while following the evolution of baby.
Finally, if you do not remember the baby’s height or weight, take a look at your health record, or wait for the next appointment with the pediatrician who will be able to give you more precise indications to date.