How do you say there are four bedrooms in French?

There are two ways to say "there are four bedrooms" in French, depending on the context:

1. Formal:

* Il y a quatre chambres. (Formal, literally "There are four rooms.")

2. Informal:

* Il y a quatre pièces. (Informal, literally "There are four pieces/rooms.")

Note: In French, "chambre" specifically refers to a bedroom, while "pièce" is a more general term for a room.