YOU SAID:
like how big it is all over your face?
INTO JAPANESE
顔全体にどれくらいの大きさがありますか?
BACK INTO ENGLISH
How big is your entire face?
INTO JAPANESE
顔全体の大きさはどれくらいですか?
BACK INTO ENGLISH
How big is your entire face?
That didn't even make that much sense in English.