ArcGIS Pro Coordinate System Reprojection & Datum Shift Guide

ArcGIS Pro Spatial Reference Fundamentals

  • Map Frame CRS vs Feature Class CRS: Setting the Map Frame CRS in ArcGIS Pro automatically performs on-the-fly display transformations, but underlying dataset coordinates remain unchanged.
  • Project Geoprocessing Tool: Use the Project tool to permanently write re-projected coordinates into a new feature class or shapefile.
  • Geographic Transformations (Datum Shifts): When transforming across different datums (e.g., NAD 1983 to WGS 1984), select an explicit transformation method (such as NAD_1983_To_WGS_1984_5) to avoid 1-2 meter horizontal offsets.

1. How to Reproject a Layer in ArcGIS Pro

  1. Open the Geoprocessing pane (Analysis → Tools).
  2. Search for the Project (Data Management Tools) utility.
  3. Set Input Dataset to your shapefile or feature class.
  4. Set Output Coordinate System to your target EPSG projection (e.g. NAD_1983_UTM_Zone_10N or WGS 1984).
  5. If a datum shift is detected, select the appropriate Geographic Transformation.
  6. Click Run.

Single Point EPSG & Datum Verification

Need to verify specific coordinate points or transform WGS84 lat/long to State Plane / UTM without launching ArcGIS Pro?

Universal Coordinate Sandbox