In the US, a very polite and neutral term for a public toilet is “restroom.” If you are in a private home, say, “bathroom.” “May I use your restroom/bathroom?” “Where is the restroom/bathroom?” or in a very large building, “Where are the restrooms?”
Can I go to the bathroom or may I go?
"Can I go to the restroom?" means "Am I capable of going to the restroom?" This is probably not what was intended. This distinction is often ignored in casual conversation, but "may" is both correct and more polite.Jul 4, 2013
Can I use the bathroom SpanishDict?
¿Puedo ir al baño?
What is your name SpanishDict?
What's your name? = ¿Cómo te llamas?
How do you ask to go to the toilet?
You simply say, “Excuse me, I need to goto the restroom.”, or, “Excuse me, I need to goto the bathroom.”, or, “Excuse me, can I use your restroom?”, or, “Pardon me, is there a bathroom nearby?” (like in a store you might use this one).