EPSG:4801 — CH1903 (Bern)

Geographic 2D · Europe - Liechtenstein and Switzerland

Export Formats

WKT2

GEOGCRS[
    "CH1903 (Bern)",
    DATUM[
        "CH1903 (Bern)",
        ELLIPSOID[
            "Bessel 1841",
            6377397.155,
            299.1528128,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7004]
        ],
        ID["EPSG",6801]
    ],
    PRIMEM[
        "Bern",
        7.439583333,
        ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
        ID["EPSG",8907]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4801]
]

PROJ.4

+proj=longlat +ellps=bessel +pm=bern +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4801", "+proj=longlat +ellps=bessel +pm=bern +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4801,
  "name": "CH1903 (Bern)",
  "kind": "geographic 2D",
  "area": "Europe - Liechtenstein and Switzerland",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    45.81,
    5.95,
    47.81,
    10.5
  ],
  "proj4": "+proj=longlat +ellps=bessel +pm=bern +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 (4801, 'EPSG', 4801, '+proj=longlat +ellps=bessel +pm=bern +no_defs +type=crs', '');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+pm=bern"
  "+no_defs"
  "+type=crs"
END

Related Coordinate Systems

Available Transformations (2)

Transformation	Source → Target	Accuracy (m)
CH1903 (Bern) to CH1903 (1)	4801 → 4149	0
Bern 1898 (Bern) to CH1903 (Greenwich) Deprecated	4801 → 4149	—

Other CRS using CH1903 (Bern)

Frequently Asked Questions

How do I add EPSG:4801 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4801, 'EPSG', 4801, '+proj=longlat +ellps=bessel +pm=bern +no_defs +type=crs', '');

Read the full PostGIS guide →

How do I add EPSG:4801 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+pm=bern"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4801 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4801", "+proj=longlat +ellps=bessel +pm=bern +no_defs +type=crs");

Read the full Proj4js guide →