EPSG:2277 · Americas
Texas Central State Plane (US ft) to KML & KMZ
Convert Texas Central State Plane (US ft) eastings and northings to latitude and longitude, and save them as a Google Earth KML or KMZ. Try a single point here, or convert a whole spreadsheet in the web app.
- Converter already set to EPSG:2277
- Datum shift to WGS 84 applied automatically
- Whole sheets with photos and boundaries in the web or Windows app
About Texas Central State Plane (US ft)
Texas Central (zone 4203) is a Lambert conformal conic State Plane grid on NAD83, in US survey feet. NAD83 is treated as WGS 84 here, which is good to about a metre or two.
Where it's used: Central Texas including Austin and Waco.
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 “2277” and pick NAD83 / Texas Central (ftUS).
- Check one point you know on the map, then press Save KML or Save KMZ (with photos) and open it in Google Earth.
This grid is in US survey feet. Enter coordinates in those units, not metres.
Check points for Texas Central State Plane (US ft)
Five points inside the area of use of Texas Central State Plane (US ft), with their latitude and longitude on WGS 84 and their easting and northing in this grid (US survey feet). Enter an easting and northing in the converter above: you should get the latitude and longitude shown, to a few centimetres.
| Point | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| Middle of the area of use | 31.02500° N | 100.08000° W | 2,375,931.01 | 10,336,611.70 |
| Towards the north-west | 31.77200° N | 104.02800° W | 1,148,594.56 | 10,627,297.34 |
| Towards the north-east | 31.77200° N | 96.13200° W | 3,601,930.75 | 10,632,884.42 |
| Towards the south-west | 30.27800° N | 104.02800° W | 1,130,550.30 | 10,084,209.78 |
| Towards the south-east | 30.27800° N | 96.13200° W | 3,622,448.40 | 10,089,884.67 |
Common mistakes with Texas Central State Plane (US ft)
- Easting and northing swapped. In Texas Central State Plane (US ft) the middle of the grid is near easting 2,375,931.01 and northing 10,336,611.70. If your easting column holds numbers like 10,336,611.70, the columns are the wrong way round and every point lands far away: swap them before converting.
- Metres entered as feet. Texas Central State Plane (US ft) is in US survey feet. Enter the values as they are; converting them to metres first puts every point in the wrong place.
- Forgetting the datum. Texas Central State Plane (US ft) is not on WGS 84: treated as WGS 84, no shift (the datums agree to about a metre or better). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
- Points outside the grid's area. Texas Central State Plane (US ft) is meant for United States (USA) - Texas - counties of Anderson; Angelina; Bastrop; Bell; Blanco; Bosque; Brazos; Brown; Burleson; Burnet; Cherokee; Coke; Coleman; Comanche; Concho; Coryell; Crane; Crockett; Culberson; Ector; El Paso; Falls; Freestone; Gillespie; Glasscock; Grimes; Hamilton; Hardin; Houston; Hudspeth; Irion; Jasper; Jeff Davis; Kimble; Lampasas; Lee; Leon; Liberty; Limestone; Llano; Loving; Madison; Mason; McCulloch; McLennan; Menard; Midland; Milam; Mills; Montgomery; Nacogdoches; Newton; Orange; Pecos; Polk; Reagan; Reeves; Robertson; Runnels; Sabine; San Augustine; San Jacinto; San Saba; Schleicher; Shelby; Sterling; Sutton; Tom Green; Travis; Trinity; Tyler; Upton; Walker; Ward; Washington; Williamson; Winkler. 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.
Before you rely on it
Houston is in the South Central zone (EPSG 2278) and Dallas–Fort Worth in North Central (EPSG 2276). Always check one known control point before sending a file out.