Currently by default the ArcGIS Pro (1.3.1) measure tool does not contain an option to measure distances in nautical miles. This would be extremely useful for people working predominantly in the ocean space eg NOAA or NIWA.
Looks like this has been implmented at Version 1.4.1Click the Project TabClick Options
Ideas housekeeping. Just marked this one Implemented. Thanks John Plunkett
Retrieving data ...