EPSG:7801 — ETRS89-BGR [BGS2005] / CCS2005

Projected · Bulgaria - onshore

Export Formats

OGC WKT

PROJCS[
    "BGS2005 / CCS2005",
    GEOGCS[
        "BGS2005",
        DATUM[
            "Bulgaria_Geodetic_System_2005",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","7798"]
    ],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",42.6678756833333],
    PARAMETER["central_meridian",25.5],
    PARAMETER["standard_parallel_1",42],
    PARAMETER["standard_parallel_2",43.3333333333333],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",4725824.3591],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","7801"]
]

WKT2

PROJCRS[
    "ETRS89-BGR [BGS2005] / CCS2005",
    BASEGEOGCRS[
        "ETRS89-BGR [BGS2005]",
        DATUM[
            "Bulgaria Geodetic System 2005",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ANCHOREPOCH[2005],
            ID["EPSG",1167]
        ],
        ID["EPSG",7798]
    ],
    CONVERSION[
        "Cadastral Coordinate System 2005",
        METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
        PARAMETER[
            "Latitude of false origin",
            42.6678756833336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8821]
        ],
        PARAMETER[
            "Longitude of false origin",
            25.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8822]
        ],
        PARAMETER[
            "Latitude of 1st standard parallel",
            42,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Latitude of 2nd standard parallel",
            43.3333333333336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8824]
        ],
        PARAMETER[
            "Easting at false origin",
            500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8826]
        ],
        PARAMETER[
            "Northing at false origin",
            4725824.3591,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8827]
        ],
        ID["EPSG",7802]
    ],
    CS[Cartesian,2,ID["EPSG",4531]],
    AXIS["Northing (x)",north],
    AXIS["Easting (y)",east],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",7801]
]

PROJ.4

+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:7801", "+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 7801,
  "name": "ETRS89-BGR [BGS2005] / CCS2005",
  "kind": "projected",
  "area": "Bulgaria - onshore",
  "unit": "metre",
  "bbox": [
    41.24,
    22.36,
    44.23,
    28.68
  ],
  "proj4": "+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (7801, 'EPSG', 7801, '+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["BGS2005 / CCS2005",GEOGCS["BGS2005",DATUM["Bulgaria_Geodetic_System_2005",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7798"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42.6678756833333],PARAMETER["central_meridian",25.5],PARAMETER["standard_parallel_1",42],PARAMETER["standard_parallel_2",43.3333333333333],PARAMETER["false_easting",500000],PARAMETER["false_northing",4725824.3591],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","7801"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=42.6678756833333"
  "+lon_0=25.5"
  "+lat_1=42"
  "+lat_2=43.3333333333333"
  "+x_0=500000"
  "+y_0=4725824.3591"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

7801=PROJCS["BGS2005 / CCS2005",GEOGCS["BGS2005",DATUM["Bulgaria_Geodetic_System_2005",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7798"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42.6678756833333],PARAMETER["central_meridian",25.5],PARAMETER["standard_parallel_1",42],PARAMETER["standard_parallel_2",43.3333333333333],PARAMETER["false_easting",500000],PARAMETER["false_northing",4725824.3591],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","7801"]]

Related Coordinate Systems

Available Transformations (3)

Transformations inherited from base CRS: EPSG:7798 (ETRS89-BGR [BGS2005])

Transformation	Source → Target	Accuracy (m)
ETRS89-BGR [BGS2005] to WGS 84 (1)	7798 → 4326	1
Pulkovo 1942(83) to BGS2005 (1)	4178 → 7798	5
BGS2005 to ETRS89 (1) Deprecated	7798 → 4258	0

Other CRS using Bulgaria Geodetic System 2005

Frequently Asked Questions

How do I add EPSG:7801 to GeoServer?

Add the following definition to your GeoServer configuration:

7801=PROJCS["BGS2005 / CCS2005",GEOGCS["BGS2005",DATUM["Bulgaria_Geodetic_System_2005",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7798"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42.6678756833333],PARAMETER["central_meridian",25.5],PARAMETER["standard_parallel_1",42],PARAMETER["standard_parallel_2",43.3333333333333],PARAMETER["false_easting",500000],PARAMETER["false_northing",4725824.3591],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","7801"]]

Read the full GeoServer guide →

How do I add EPSG:7801 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (7801, 'EPSG', 7801, '+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["BGS2005 / CCS2005",GEOGCS["BGS2005",DATUM["Bulgaria_Geodetic_System_2005",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7798"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42.6678756833333],PARAMETER["central_meridian",25.5],PARAMETER["standard_parallel_1",42],PARAMETER["standard_parallel_2",43.3333333333333],PARAMETER["false_easting",500000],PARAMETER["false_northing",4725824.3591],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","7801"]]');

Read the full PostGIS guide →

How do I add EPSG:7801 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=42.6678756833333"
  "+lon_0=25.5"
  "+lat_1=42"
  "+lat_2=43.3333333333333"
  "+x_0=500000"
  "+y_0=4725824.3591"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:7801 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:7801", "+proj=lcc +lat_0=42.6678756833333 +lon_0=25.5 +lat_1=42 +lat_2=43.3333333333333 +x_0=500000 +y_0=4725824.3591 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

ETRS89-BGR [BGS2005]

Datum

Bulgaria Geodetic System 2005

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

Bulgaria - onshore

Bulgaria - onshore.

Coordinate System

Cartesian 2D CS. Axes: northing, easting (x,y). Orientations: north, east. UoM: m.

Center Coordinates

501637.70 4733280.69

Projected Bounds

4904167.98 236773.58754086.19 4572110.27

WGS84 Bounds

44.23 22.3628.68 41.24

Data Source

EPSG

Information Source

Geodesy, Cartography and Geoinformation Systems Directorate (GCGIS).

Revision Date

2025-10-17

Scope

Cadastre, engineering survey, topographic mapping (1:5000 and larger scales).

Remarks

Adopted 2010-07-29. See ETRS89-BGR [BGS2005] / UTM zone 34N (N-E) and ETRS89-BGR [BGS2005] / UTM zone 35N (N-E) (CRS codes 7799 and 7800) for smaller scale mapping purposes.

EPSG

7801