どこ asks about a place; どちら can ask about a place, a direction or a choice.

The idea

Use どこですか for “where is it?” In a polite request for a location or direction, どちらですか is also natural. When choosing between two options, use どちら; before a noun use どちらの, as in どちらの電車.

Patterns to compare
FormExample
どこトイレはどこですか
どちら出口でぐちはどちらですか
どちらの+名詞めいしどちらの電車でんしゃですか

Examples

  • トイレはどこですか。Where is the restroom?
  • すみません、出口でぐちはどちらですか。Excuse me, which way is the exit?
  • どちらの電車でんしゃに乗のりますか。Which train will you take?
  • コーヒーとお茶ちゃとどちらが好すきですか。Which do you prefer, coffee or tea?
  • どこで昼ひるご飯はんを食たべますか。Where will you eat lunch?
  • 学校がっこうはどこですか。Where is the school?

Read-aloud uses a synthetic Japanese voice available on your device. Voice quality and availability vary; it does not assess your pronunciation.

Watch out

Do not assume どちら always means “which”: it can mean “where” politely. どこ does not normally replace it in a choice between two things.

Try it yourself

  1. Choose the correct form: Which train will you take? __の電車でんしゃに乗のりますか。(どこ/どちら)

    Show answer or example answer

    どちら

    どちらの電車 asks which train; どちら directly precedes の.

  2. Choose the correct form: Which do you prefer, coffee or tea? コーヒーとお茶ちゃと__が好すきですか。(どこ/どちら)

    Show answer or example answer

    どちら

    The question offers coffee and tea as alternatives, so use どちら.

  3. Choose the correct form: Where is the restroom? トイレは__ですか。(どこ/どちら)

    Show answer or example answer

    どこ / どちら

    Both どこ and the more polite どちら can ask where the restroom is.

Use it today

Ask where a nearby exit is, then ask which of two drinks someone prefers.