Arduino Uno Volume (mm3)

I need to know the volume (in mm3 or similar) of an Arduino Uno to know how much air it displaces inside a small chamber. I've tried Eagle files and other documentation but nothing seems to have the answer.

I could test it using the displacement of water, but I don't want to dunk my working Arduinos :confused:

Thanks in advance!

You could dunk it in something like isopropyl alcohol