How to > View > Find a point's coordinates
  
Find a point's coordinates
You can determine the exact coordinates of any point in the viewport with the Measure tool.
To find a point's coordinates
1. Click Analysis and then, in the Measure group, click the arrow next to Point.
2. Click Point 2D or Point 3D,depending on whether you are using 2D or 3D.
3. Click a point in the viewport. The coordinates of the point are given in the Measure Output dialog box, next to the X: and Y: coordinate fields.
4. Continue clicking points to determine their coordinates, or click or to complete the command.
You can click OK to use the output from Measure as input for an interrupted operation.