How many Empire State Buildings would fit in NY's empty office space?

[Patricia Steiner]

First this:  The Empire State building has 2,800,118 square feet.

Answer:  

New York City’s vacant office space could fill 26.6 Empire State Buildings

 Source: NYTimes

And, it's a trend across the nation.  

Just sharing...the full NYTimes article is worth reading (please google 'NY City's Vacant Office Space' to get a free version of it).

Best...