Which is bigger? An efficiency or a studio? And what's the difference?

Question

Which is bigger? An efficiency or a studio? And what's the difference?

Answer 1

There is no real answer on which one is bigger. An "efficiency" is actually the official term for a one-room apartment that contains either full or efficiency kitchen facilities. "Studio" originally referred to an efficiency apartment that doubled as an artist's studio, but it has evolved to become the most common term for a one-room apartment. Hope this helps.