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How to Say ‘I'm 25 years old.’ in Japanese

25歳です。

25 sai desu

[nijuu-go sai desu]

💬 Usage Tip: [歳] is the counter for age. In [25歳です], [です] makes it polite and natural for self-introductions. You can swap the number: [20歳です], [30歳です]. Fun note: [20歳] is often read [はたち] instead of the usual number reading.

🇯🇵 In Japan: In Japanese self-introductions, sharing your age is common in casual settings like school, language exchange, or meeting new friends, but less common in business situations. Using polite [です] sounds friendly and respectful.

Phrase Breakdown

25

25

[nijuu-go]

25

The number twenty-five. In self-introductions, it is used before 歳 to say age.

Example

私は25です。

I am 25.

sai

[sai]

years old

歳 is the counter used for age in Japanese. It follows a number to express how old someone is.

Example

妹は25歳です。

My younger sister is 25 years old.

です

desu

[desu]

is / am / are

です is a polite sentence ending often used in beginner Japanese. It makes the statement polite and complete.

Example

私は学生です。

I am a student.

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