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Plot coordinates in ArcGIS 9.3 don't make sense

Plot coordinates in ArcGIS 9.3 don't make sense


I have a layer of plot features in ArcGIS 9.3 that I want the UTM coordinates for. So I used the Feature to Point tool and then added XY coordinates to each point. I then viewed the Attribute table and noticed the coordinates don't make sense.

Here is the information about my map/projection:

Projected Coordinate System: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Projection: Lambert_Conformal_Conic False_Easting: 2000000.00261667 False_Northing: 0.00000000 Central_Meridian: -79.00000000 Standard_Parallel_1: 34.33333333 Standard_Parallel_2: 36.16666667 Latitude_Of_Origin: 33.75000000 Linear Unit: Foot_US Geographic Coordinate System: GCS_North_American_1983 Datum: D_North_American_1983 Prime Meridian: Greenwich Angular Unit: Degree

I realize the units are in feet (and I ultimately want meters for UTM), so I converted my X and Y to meters by multiplying each value by 0.3048 in an excel spreadsheet.

The resulting units end up in the Pacific Ocean (they're supposed to be in NC in the U.S.).

Examples of my coordinates (from ArcGIS, so they're in feet):

X Coord Y Coord 2008821.00994000000 823231.18663500000 2008796.70771000000 823457.50968900000

… converted to meters:

X Coord Y Coord 612288.6438 250920.8657 612281.2365 250989.849

What am I missing here?

I'm an ArcGIS novice.


ArcToolbox > Data Management Tools > Projections and Transformations > Feature > Project

  • Select feature of choice from layers list and drag to "Input Database or Feature Class" field in Project window

  • For "Output Coordinate System" field: Select > Projected Coordinate Systems > UTM > (projection of choice)

    • (MAKE SURE YOU SELECT THE PROPER ZONE!)

Then I had to open up the Attribute table for my new feature layer and change the x and y point coordinates to meters.

  • Right click columns > Calculate Geometry > (select meters)