Which one should you use?
While トイレに行ってもいいですか？ is a standard polite way to ask, you can use different words for the restroom and different endings to change the level of politeness. For example, replacing トイレ with the more polite お手洗い makes the request more elegant. Similarly, トイレ行ってもいい？ is a shorter, more casual version and トイレ行ってもいいか？ is a casual way to ask.
Is there a formal and an informal way to say it?
The level of formality varies significantly depending on who you are talking to. お手洗いに行ってもよろしいでしょうか？ is highly formal and suitable for very respectful situations. トイレに行ってもいいですか？ is the standard polite form. For friends or family, you can use the informal トイレ行ってもいい？ by dropping the desu ka ending. Using トイレ is common, but using the euphemism お手洗い (otearai) is considered more polite in social settings.
How does it change in a sentence?
The phrase uses the ~te mo ii desu ka grammar pattern, which is the standard way in Japanese to ask for permission to do something.
How do you pronounce it?
toire ni ittemo ii desu ka?
What mistakes should you avoid?
English speakers often mistakenly use トイレに行きたいです (I want to go to the toilet), which can sound blunt or demanding in Japanese. Instead, use the permission-seeking pattern ~te mo ii desu ka to ask if it is okay to go.
Did you know?
- In Japan, it is common for people to excuse themselves from a table without explicitly asking to go to the bathroom, simply by saying 失礼します meaning 'I am being rude'.
- In very formal settings, some people use the word 化粧室 meaning 'powder room' or 'makeup room' instead of トイレ.
- Some traditional Japanese bathrooms have a separate room for the toilet and the bathing area, meaning the phrase for 'bathroom' can refer to two different physical spaces.
Examples in context
- すみません、トイレに行ってもよろしいですか？
はい、どうぞ。Excuse me, may I go to the bathroom?
Yes, go ahead. - トイレに行ってもいいですか？toire ni itte mo ii desu ka?Can I go to the bathroom?
- すみません、トイレに行ってもいいですか？sumimasen, toire ni itte mo ii desu ka?Excuse me, can I go to the bathroom?
- 少しの間、トイレに行ってもいいですか？sukoshi no aida, toire ni itte mo ii desu ka?Can I go to the bathroom for a little bit?
Example conversation
During a movie at home, Himari asks Ren for permission to leave the room.
- 陽葵 Himari蓮さん、トイレに行ってもいいですか？Ren-san, toire ni itte mo ii desu ka?Ren, can I go to the bathroom?
- 蓮 Renはい、いいですよ。hai, ii desu yo.Yes, you may.
- 陽葵 Himariすぐ戻りますね。sugu modorimasu ne.I will be right back.
- 蓮 Renわかりました。wakarimashita.I understand.
