Transform coordinates Get position on a map

EPSG:4277

Geodetic coordinate system

OSGB 1936

Covered area

Center coordinates
-3.44863336 55.36499136

WGS84 bounds:
-8.82 49.79
1.92 60.94

United Kingdom (UK) - Great Britain - England and Wales onshore, Scotland onshore and Western Isles nearshore; Isle of Man onshore.

Available transformations:

Selected transformation

United Kingdom (UK)

code 1314

Accuracy 2.0 m (default)
7 parameters

Method: Position Vector transformation (geog2D domain)

Remarks: For a more accurate transformation see OSGB 1936 / British National Grid to ETRS89 (2) (code 1039): contact the Ordnance Survey of Great Britain (http://www.gps.gov.uk/gpssurveying.asp) for details.

Information source: UK Offshore Operators Association. Also at EuroGeographics at http://crs.bkg.bund.de/crs-eu

Revision date: 2010-03-30

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: OSGB 1936

Datum: OSGB 1936

Ellipsoid: Airy 1830

Prime meridian: Greenwich

Data source: OGP

Revision date: 2016-09-29

Scope: Geodetic survey.

Method: Position Vector transformation (geog2D domain)

Area of use: United Kingdom (UK) - offshore to boundary of UKCS within 49°46'N to 61°01'N and 7°33'W to 3°33'E; onshore Great Britain (England, Wales and Scotland). Isle of Man onshore.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Definition: Well Known Text (WKT)

GEOGCS["OSGB 1936",
    DATUM["OSGB_1936",
        SPHEROID["Airy 1830",6377563.396,299.3249646,
            AUTHORITY["EPSG","7001"]],
        TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],
        AUTHORITY["EPSG","6277"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4277"]]

GEOGCS["OSGB 1936",
    DATUM["OSGB_1936",
        SPHEROID["Airy 1830",6377563.396,299.3249646,
            AUTHORITY["EPSG","7001"]],
        TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],
        AUTHORITY["EPSG","6277"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4277"]]

Definition: ESRI WKT

GEOGCS["OSGB 1936",DATUM["D_OSGB_1936",SPHEROID["Airy_1830",6377563.396,299.3249646]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

Definition: PROJ.4

+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4277","+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs");

Definition: OGC GML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-crs-4277">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>geographic 2D</epsg:type>
      <epsg:revisionDate>2016-09-29</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.370" />
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2016.034" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>false</epsg:isDeprecated>
    </epsg:CommonMetaData>
  </gml:metaDataProperty>
  <gml:identifier codeSpace="IOGP">urn:ogc:def:crs:EPSG::4277</gml:identifier>
  <gml:name>OSGB 1936</gml:name>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::4390" />
  <gml:scope>Geodetic survey.</gml:scope>
  <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
  <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6277" />
</gml:GeodeticCRS>

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-crs-4277">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>geographic 2D</epsg:type>
      <epsg:revisionDate>2016-09-29</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.370" />
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2016.034" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>false</epsg:isDeprecated>
    </epsg:CommonMetaData>
  </gml:metaDataProperty>
  <gml:identifier codeSpace="IOGP">urn:ogc:def:crs:EPSG::4277</gml:identifier>
  <gml:name>OSGB 1936</gml:name>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::4390" />
  <gml:scope>Geodetic survey.</gml:scope>
  <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
  <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6277" />
</gml:GeodeticCRS>

Definition: XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs7852" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>OSGB 1936</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4277</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs7853">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs7854" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs7855" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs7856">
      <gml:datumName>OSGB_1936</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6277</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs7857">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs7858">
          <gml:ellipsoidName>Airy 1830</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7001</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6377563.396</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">299.3249646</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs7852" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>OSGB 1936</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4277</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs7853">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs7854" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs7855" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs7856">
      <gml:datumName>OSGB_1936</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6277</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs7857">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs7858">
          <gml:ellipsoidName>Airy 1830</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7001</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6377563.396</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">299.3249646</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>

Definition: GeoServer

4277=GEOGCS["OSGB 1936",DATUM["OSGB_1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],AUTHORITY["EPSG","6277"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4277"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=airy"
	"towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489"
	"no_defs"
END

Definition: MapServer - Python

wkt = '''GEOGCS["OSGB 1936",DATUM["OSGB_1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],AUTHORITY["EPSG","6277"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4277"]]'''
m = mapObj('')
m.setWKTProjection(ref.ExportToWkt())
lyr = layerObj(m)
lyr.setWKTProjection(ref.ExportToWkt())

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs">
	<Layer srs="+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs">
	</Layer>
</Map>

Definition: Mapnik - Python

proj4 = '+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs'
m = Map(256,256,proj4)
lyr = Layer('Name',proj4)

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4277, 'EPSG', 4277, '+proj=longlat +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +no_defs ', 'GEOGCS["OSGB 1936",DATUM["OSGB_1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],AUTHORITY["EPSG","6277"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4277"]]');

Definition: OGC WKT

GEOGCS["OSGB 1936",DATUM["OSGB_1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],TOWGS84[446.448,-125.157,542.06,0.15,0.247,0.842,-20.489],AUTHORITY["EPSG","6277"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4277"]]

Coordinates using this geodetic coordinate system:

EPSG:27700 OSGB 1936 / British National Grid (map)