哪儿 (nǎr) and 哪里 (nǎlǐ) both mean where. They mean the same thing.
Put them where the place would go, usually after 在 (zài).
哪儿 / 哪里 let you ask where someone or something is — essential for finding people, places, and things.
Structure
Subject + 在 + 哪儿 / 哪里?
你在家。 (Nǐ zài jiā.) You are at home. → 你在哪儿? (Nǐ zài nǎr?) Where are you? 朋友在北京。 (Péngyou zài Běijīng.) Friend is in Beijing. → 朋友在哪里? (Péngyou zài nǎlǐ?) Where is your friend? 他在法国。 (Tā zài Fǎguó.) He is in France. → 他在哪儿? (Tā zài nǎr?) Where is he? 她在中国。 (Tā zài Zhōngguó.) She is in China. → 她在哪里? (Tā zài nǎlǐ?) Where is she? 你在上海。 (Nǐ zài Shànghǎi.) You are in Shanghai. → 你在哪儿? (Nǐ zài nǎr?) Where are you?
Examples
你在哪儿? Nǐ zài nǎr?
Breakdown: 你 (you) · 在 (are at) · 哪儿 (where)
→ Where are you?
你的公司在哪里? Nǐ de gōngsī zài nǎlǐ?
Breakdown: 你的 (your) · 公司 (company) · 在 (is at) · 哪里 (where)
→ Where is your company?
医院在哪儿? Yīyuàn zài nǎr?
Breakdown: 医院 (hospital) · 在 (is at) · 哪儿 (where)
→ Where is the hospital?
商店在哪里? Shāngdiàn zài nǎlǐ?
Breakdown: 商店 (store) · 在 (is at) · 哪里 (where)
→ Where is the store?
学校在哪儿? Xuéxiào zài nǎr?
Breakdown: 学校 (school) · 在 (is at) · 哪儿 (where)
→ Where is the school?
那是学校,学校在哪里? Nà shì xuéxiào, xuéxiào zài nǎlǐ?
Breakdown: 那 (that) · 是 (is) · 学校 (school) · 学校在哪里 (where is the school)
→ That is a school — where is the school?
那 vs 哪
那 (nà) and 哪 (nǎ) look almost identical and differ by only one stroke — but they are not interchangeable.
- 那 (nà, 4th tone) means that — it points at something. It is not a question word. - 哪 (nǎ, 3rd tone) means which — it is a question word, and it is the 哪 inside 哪儿 / 哪里.
那 never asks a question on its own. If you mean where, you need 哪儿 or 哪里, not 那儿 or 那里 (which mean there).
✓ 那是学校。 (Nà shì xuéxiào.) That is a school. ✓ 学校在哪里? (Xuéxiào zài nǎlǐ?) Where is the school? ✗ 学校在那里? as a question — 那里 means there, not where.
Common Mistakes
Moving 哪儿 to the front
- Incorrect: 哪儿你在? (Nǎr nǐ zài?) - Correct: 你在哪儿? (Nǐ zài nǎr?) — Where are you?
Reversing 在 and 哪儿
- Incorrect: 你哪儿在? (Nǐ nǎr zài?) - Correct: 你在哪儿? (Nǐ zài nǎr?) — Where are you?
Confusing 那 with 哪
- Incorrect: 你在那儿? meant as a question (Nǐ zài nàr?) - Correct: 你在哪儿? (Nǐ zài nǎr?) — Where are you? - 那 points at something (that); only 哪 asks a question (which/where).
What Can You Say Now?
You can now ask where a person, place, or thing is — 你在哪儿? (Where are you?), 医院在哪儿? (Where is the hospital?) — using either 哪儿 or 哪里 interchangeably after 在. Try texting a friend 你在哪儿? the next time you are trying to meet up.
Quick Summary
Ask 在哪儿? or 在哪里? — both are correct.
| Word |
|---|
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哪里 - na3 li3 (Where? Somewhere; also used to modestly deny a compliment.) |
|
哪儿 - na3 er (Where.) |
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那 - na4 (That) |
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家 - jia1 (Home; family; a suffix for specialists, e.g. musician.) |
|
学校 - xüe2 xiao4 (School.) |
|
公司 - gong1 si1 (Company.) |
|
医院 - yi1 yuan4 (Hospital.) |
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商店 - shang1 dian4 (Store; shop.) |
|
中国 - zhong1 guo2 (China.) |
|
北京 - bei3 jing1 (Beijing.) |