ESRI:102223 · Costa Rica
Costa Rica TM 90 to KML & KMZ
Costa Rica TM 90 (ESRI:102223) is a Transverse Mercator coordinate system on the Costa Rica TM 90 datum, with coordinates in metres. Its official area of use is: Costa Rica.
- Converter already set to ESRI:102223
- Latitude and longitude on WGS 84, as Google Earth uses
- Download the point as KML
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Good to know
- Datum: Defined on WGS 84 — no shift needed.
Convert a whole spreadsheet
- Open the web app or the Windows app, and paste your rows from Excel or open a CSV file.
- Under Coordinate system, search for “102223” and pick Costa Rica TM 90.
- Check one point you know on the map, then press Save KML or Save KMZ and open it in Google Earth.
Common mistakes with Costa Rica TM 90
- Feet entered as metres. Costa Rica TM 90 is in metres. Coordinates copied from a drawing in feet must be converted first, or every point moves outwards from the grid's origin.
- Looking for a datum shift that isn't there. Costa Rica TM 90 is defined on WGS 84, the datum Google Earth uses, so no shift is applied. If points are off by tens or hundreds of metres, the data is probably on another grid.
- Points outside the grid's area. Costa Rica TM 90 is meant for Costa Rica. Points well outside that area convert with growing error; the converter flags them so you can choose the right grid.
- A local site grid. If every point is off by the same distance and direction, the drawing may be on a local site grid. Calibrate on three or more known control points instead.
New to this? Read how to convert easting and northing to latitude and longitude.