How to Say "May I go to the bathroom" in Chinese (Mandarin): 我可以去洗手间吗？

The characters in 我可以去洗手间吗？

• 可

  Can, may.

• 以

  By means of; with 可 it means "may".

• 洗

  To wash.

  9 strokes

• 手

  Hand.

  4 strokes

• 间 / 間

  Room.

洗手间 is the "wash hands room": the bathroom. 我可以……吗？ is a polite way to ask "May I ...?"

More examples with 我可以去洗手间吗？

• 我可以喝水吗？

  我可以喝水嗎？

  Wǒ kěyǐ hē shuǐ ma?

  May I have some water?

• 洗手间在二楼。

  洗手間在二樓。

  Xǐshǒujiān zài èr lóu.

  The bathroom is on the second floor.