When we talk about a child that is younger than 1 year old, we refer to their age in months. We say they are 1 month old when they have lived for 4 weeks. For every month after that we refer to their age by the month number, up to 1 year old.
My child is 1 month old.
私の子供は1ヶ月です。
My child is 11 months old.
私の子供は11ヶ月です。
1歳[未満](https://eikaiwa.dmm.com/uknow/questions/86/)の子供の[年齢](https://eikaiwa.dmm.com/uknow/questions/33031/)は月で表します。"they are 1 month old"(彼らは1ヶ月です。)と言うと4週間生きたということになります。1歳までは月で年齢を表します。
>▪ My baby is 2 months old.
>▪ My baby is 2 days old.
>▪ I have a 10 month old baby.
*I you child is not 1 year old yet then you would give the age in months or weeks. If the child is not 1 month old yet you can give the age in days or weeks.
▪ My baby is 2 months old.(私の[赤ちゃん](https://eikaiwa.dmm.com/uknow/questions/33924/)は2ヶ月です。)
▪ My baby is 2 days old.(私の赤ちゃんは2日です。)
▪ I have a 10 month old baby.(私の赤ちゃんは10ヶ月です。)
1歳未満の赤ちゃんの[年齢](https://eikaiwa.dmm.com/uknow/questions/33031/)は月か週で表します。1ヶ月未満の赤ちゃんは日数か週数で表します。
There are a number of ways to talk about your child's age. If they are only a few months, you will say the exact number of months (and sometimes weeks) since their birth. Another way is to state what they are not one yet. For example, you can say "my baby is not one yet, but she will be in July". This tells the person that they are below the age of one. I hope that helps
子供の年齢を表す言葉はたくさんありますよね。まだ生まれてから数か月(時に数週間)なら、生まれてから数か月(数週間)と言います。
まだ一歳にも満たないという言い方は他にもあります。
"my baby is not one yet, but she will be in July."
(赤ちゃんはまだ一歳に満たないけど、7月に一歳になるよ。)
これは一歳以下だという意味です。
この回答がお役に立てれば幸いです。
Examples
"We went to visit my daughter this weekend, they have a 3 month old baby."
or
"The baby is 6 months old."
or
"The baby is 3 months old."
or
"The baby is not even a year old yet."
例:
"We went to visit my daughter this weekend, they have a 3 month old baby."
週末に娘に会いに行きました。3ヶ月の赤ちゃんがいます。
"The baby is 6 months old."
その赤ちゃんは生後6ヶ月です。
"The baby is 3 months old."
その赤ちゃんは生後3ヶ月です。
"The baby is not even a year old yet."
その赤ちゃんはまだ1歳にもなっていません。
When a baby is between the age of 0 -1years, we count their age in weeks or months. For example you could say either: He is 36 weeks old OR he is 8 months old.
赤ちゃんが0歳から1歳の時は、生後〇週間や、生後〇か月と言います。
例えば、He is 36 weeks old OR he is 8 months old.
(息子は生後36週間です。または、息子は生後8か月です。)と、どちらでも使えます。
If the child has not been alive for 12 months yet, we describe their age in months, weeks or days. After 12 months you may say: "The baby is a year old now."
子どもが生後12ヶ月以内の場合、年齢は月、週、日で表します。12ヶ月たったら、以下のように言えます。
The baby is a year old now.
(赤ちゃんは今1歳になりました。)