German phrase
Wie groß sind ~ in ~?
Meaning
How big are ___ in ___?
When to use it
Asks about the size. Use it for rooms, furniture, or luggage.
Example dialogue
Wie groß sind die Zimmer in der WG?
How big are the rooms in the shared apartment?
Sie sind etwa zwölf Quadratmeter groß.
They are about twelve square meters.