Question Words in Japanese with Easy Examples

Japanese question words look small, but they do a lot of heavy lifting. The good news? Once you know the basic set, you can ask about people, things, places, reasons, time, and choices without sounding like you are wrestling the sentence from the inside out.

If you have ever stared at なに / nan and wondered why it sometimes becomes なん / nan, welcome to the club. Japanese likes a little sound change drama. Very polite, very tidy, mildly annoying.

This chart gives you the most useful Japanese question words, their meanings, and real example sentences so you can start using them fast. For a broader learning path, you can also check the main guide at Learn Japanese.

Table of Contents

The Most Useful Japanese Question Words

Kanji / Japanese	Rōmaji	English Meaning	Example Sentence	Rōmaji	Translation
何	nani / nan	what	何を食べますか。	Nani o tabemasu ka.	What will you eat?
誰	dare	who	誰が来ますか。	Dare ga kimasu ka.	Who is coming?
どこ	doko	where	駅はどこですか。	Eki wa doko desu ka.	Where is the station?
いつ	itsu	when	いつ帰りますか。	Itsu kaerimasu ka.	When are you going home?
なぜ	naze	why	なぜ日本語を勉強しますか。	Naze Nihongo o benkyō shimasu ka.	Why do you study Japanese?
どうして	dōshite	why / how come	どうして遅れましたか。	Dōshite okuremashita ka.	Why were you late?
どの	dono	which	どの本が好きですか。	Dono hon ga suki desu ka.	Which book do you like?
どれ	dore	which one	どれが一番安いですか。	Dore ga ichiban yasui desu ka.	Which one is the cheapest?
いくら	ikura	how much	これはいくらですか。	Kore wa ikura desu ka.	How much is this?
いくつ	ikutsu	how many / how old	お子さんはいくつですか。	Okosan wa ikutsu desu ka.	How old is your child?
どちら	dochira	which way / which one / who (polite)	駅はどちらですか。	Eki wa dochira desu ka.	Which way is the station?
どのくらい	dono kurai	how much / how long	ここまでどのくらいかかりますか。	Koko made dono kurai kakarimasu ka.	How long does it take to get here?

These are the core words. If you learn only these, you can already ask a surprising number of questions. Small words, big results. Very efficient. Japanese approves this kind of practical behavior.

Useful Question Words With Real-Life Examples

Kanji / Japanese	Rōmaji	Meaning	Example Sentence	Rōmaji	Translation
何ですか	Nani desu ka	What is it?	これは何ですか。	Kore wa nan desu ka.	What is this?
誰ですか	Dare desu ka	Who is it?	あの人は誰ですか。	Ano hito wa dare desu ka.	Who is that person?
どこですか	Doko desu ka	Where is it?	トイレはどこですか。	Toire wa doko desu ka.	Where is the bathroom?
いつですか	Itsu desu ka	When is it?	会議はいつですか。	Kaigi wa itsu desu ka.	When is the meeting?
なぜですか	Naze desu ka	Why is it?	なぜ高いですか。	Naze takai desu ka.	Why is it expensive?
どうしてですか	Dōshite desu ka	How come?	どうして笑うのですか。	Dōshite warau no desu ka.	Why are you laughing?
どれですか	Dore desu ka	Which one is it?	あなたのかばんはどれですか。	Anata no kaban wa dore desu ka.	Which bag is yours?
どの人ですか	Dono hito desu ka	Which person is it?	どの人が先生ですか。	Dono hito ga sensei desu ka.	Which person is the teacher?
いくらですか	Ikura desu ka	How much is it?	このケーキはいくらですか。	Kono kēki wa ikura desu ka.	How much is this cake?
いくつですか	Ikutsu desu ka	How many? / How old?	りんごはいくつありますか。	Ringo wa ikutsu arimasu ka.	How many apples are there?
どちらですか	Dochira desu ka	Which way is it?	銀行はどちらですか。	Ginkō wa dochira desu ka.	Which way is the bank?
どのくらいですか	Dono kurai desu ka	How long / how much?	準備はどのくらいですか。	Junbi wa dono kurai desu ka.	How long is the preparation?

How To Use Japanese Question Words

Japanese question words usually stay near the word they ask about. That sounds simple, and for once, it mostly is.

The basic question shape is often:

Pattern	Meaning	Example	Rōmaji	Translation
Question word + sentence + か	make a question	どこに行きますか。	Doko ni ikimasu ka.	Where are you going?
Question word + は	topic with a question word	これは何ですか。	Kore wa nan desu ka.	What is this?
Question word + が	often used for subject focus	誰が来ますか。	Dare ga kimasu ka.	Who is coming?

Here is the useful part: Japanese does not always force the question word to sit at the very front. In English we say “Where are you going?” but in Japanese you can often place the question word in a more natural spot in the sentence. The sentence still works, and your ears slowly stop panicking.

Question Words That Sound Similar

Some Japanese question words are easy to mix up. A quick comparison helps a lot.

Word	Rōmaji	Meaning	When To Use
なに	nani	what	Before a particle like を or as a standalone question
なん	nan	what	Before certain counters or sounds that make nani easier to say
どこ	doko	where	Ask for a place or location
どちら	dochira	which way / which one	More polite; also used for directions
どれ	dore	which one	Choose one item from a group

A very common beginner question is why 何 becomes なん. The short answer: Japanese pronunciation prefers smoother sound combinations in some cases. So 何時 is なんじ / nanji (what time), not なにじ. Language loves shortcuts. Even when it pretends to be neat, it still cuts corners.

Quick Grammar Notes

か at the end of a sentence usually makes it a question.
は marks the topic, even when the topic is a question word like これは何ですか。
が often points to the subject, especially in questions like 誰が / dare ga.
どこ, いつ, and なぜ are simple and very common.
どの needs a noun after it, like どの本 / dono hon (“which book”).
どれ stands alone when you choose from a set of items.

Japanese question words are not about memorizing a giant chart once and being done. They are about noticing patterns again and again until your brain stops treating them like mysterious little goblins.

Practice: Swap The Question Word

Try replacing the missing word with the correct question word.

Sentence	Missing Word	Answer	Translation
___ が来ますか。	who	誰 / dare	Who is coming?
駅は___ですか。	where	どこ / doko	Where is the station?
これは___ですか。	what	何 / nan	What is this?
会議は___ですか。	when	いつ / itsu	When is the meeting?
この店は___ですか。	how much	いくら / ikura	How much is this store’s item?
___ 本が好きですか。	which	どの / dono	Which book do you like?
___ が一番いいですか。	which one	どれ / dore	Which one is best?
___ 帰りますか。	when	いつ / itsu	When are you going home?

Common Mistakes And Fixes

Mistake: Using どれ before a noun.
Fix: Use どの before a noun. Example: どの本 / dono hon.
Mistake: Saying なにじ for “what time.”
Fix: Say なんじ / nanji.
Mistake: Forgetting か at the end of a direct question.
Fix: Add か when needed: どこですか。
Mistake: Thinking どちら only means “which one.”
Fix: It can also mean “which way” and sounds more polite.
Mistake: Using なぜ in every situation.
Fix: In conversation, どうして often sounds more natural and softer.

Question Words In A Single Glance

Japanese	Rōmaji	Meaning	Simple Example
何	nani / nan	what	何ですか。 / Nan desu ka. / What is it?
誰	dare	who	誰ですか。 / Dare desu ka. / Who is it?
どこ	doko	where	どこですか。 / Doko desu ka. / Where is it?
いつ	itsu	when	いつですか。 / Itsu desu ka. / When is it?
なぜ	naze	why	なぜですか。 / Naze desu ka. / Why is it?
どうして	dōshite	why / how come	どうしてですか。 / Dōshite desu ka. / How come?
どの	dono	which + noun	どの車ですか。 / Dono kuruma desu ka. / Which car is it?
どれ	dore	which one	どれですか。 / Dore desu ka. / Which one is it?
いくら	ikura	how much	いくらですか。 / Ikura desu ka. / How much is it?
いくつ	ikutsu	how many / how old	いくつですか。 / Ikutsu desu ka. / How old / how many?
どちら	dochira	which way / which one	どちらですか。 / Dochira desu ka. / Which way is it?
どのくらい	dono kurai	how long / how much	どのくらいですか。 / Dono kurai desu ka. / How long is it?

If you want to keep building your Japanese, this chart is a great base for reading, listening, and daily conversation. Start with the big ones like 何, 誰, どこ, and いつ, then add the rest as you need them. That is the pleasant secret: you do not need to know everything today. Just enough to ask the next useful question.

For more Japanese learning practice, visit this Japanese lesson and keep moving forward one small sentence at a time. Small steps, less chaos, better Japanese.