As a GIS student or professional, you may be asked to compute basic geometric calculations in ArcGIS Pro. This is fairly easy to accomplish, but requires understanding how Fields operate in ArcGIS Pro. In this tutorial, you will practice adding a field to an attribute table and learn how to calculate area and length for a given polygon or line feature. These measurements may be helpful in a variety of contexts: architectural, as in determining the footprint of a series of buildings; ecological, as in the distance salmon travel from a lake to the sea; or agricultural, as in determining potential yield from a crop of corn, among many others.