I am trying to calculate the area of several polygons on ArcMap (10.3.1). The polygons are all on the same layer.
I am using NAD 1983 UTM Zone 16 as my projected coordinate system. I have tried to calculate the area (m^2) using "calculate geometry..." (my field is set to double with precision 15 and scale 2). All the areas come back as 0. When I click on individual boxes, I see that the values are not actually 0, but something like 3E-8 meters^2 (which is definitely not correct).
Any suggestions on what may be causing this?