EPSG:4289

Amersfoort

Transform Get position on a map

Available transformations
to EPSG:11037
EPSG:11037 - ETRS89-NLD [AGRS2010]

Selected transformation

Name: Amersfoort to ETRS89-NLD [AGRS2010] (9)

Method: NTv2

Grid Files: rdtrans2018.gsb

Remarks: Defines Amersfoort (also known as RD Bessel). Horizontal component of official transformation RDNAPTRANS(TM)2018. Replaces Amersfoort to ETRS89 (7) (CT code 7000).

Information source: NSGI: Netherlands partnership of Kadaster, Rijkswaterstaat and Hydrographic Service, http://www.nsgi.nl/

Revision date: 2025-12-25

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Amersfoort

Datum: Amersfoort

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: NSGI: Netherlands Partnership of Kadaster, Rijkswaterstaat and Hydrographic Service, http://www.nsgi.nl/.

Revision date: 2026-01-06

Scope: Intermediate CRS in transformation to and from projected CRS.

Remarks: Use of geographic2D CRS Amersfoort (code 4289) for spatial referencing is discouraged. Use projected CRS Amersfoort / RD New (code 28992) or ETRS89-NLD [AGRS2010] (code 11037).

Area of use: Netherlands - onshore and offshore.

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

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
4.88 53.26

WGS84 bounds:
2.53 50.75
7.22 55.77

Netherlands - onshore and offshore.
MapTiler banner

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Amersfoort",
            DATUM["Amersfoort",
                ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            USAGE[
                SCOPE["Intermediate CRS in transformation to and from projected CRS."],
                AREA["Netherlands - onshore and offshore."],
                BBOX[50.75,2.53,55.77,7.22]],
            ID["EPSG",4289],
            REMARK["Use of geographic2D CRS Amersfoort (code 4289) for spatial referencing is discouraged. Use projected CRS Amersfoort / RD New (code 28992) or ETRS89-NLD [AGRS2010] (code 11037)."]]],
    TARGETCRS[
        GEOGCRS["ETRS89-NLD [AGRS2010]",
            DATUM["AGRS2010 (ETRF2000)",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]],
                ANCHOREPOCH[2010.5]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["Netherlands - onshore and offshore."],
                BBOX[50.75,2.53,55.77,7.22]],
            ID["EPSG",11037],
            REMARK["Horizontal component of national realization of ETRS89 in the Netherlands, aligned to ETRF2000."]]],
    ABRIDGEDTRANSFORMATION["Amersfoort to ETRS89-NLD [AGRS2010] (9)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","rdtrans2018.gsb"],
        USAGE[
            SCOPE["Horizontal component of official 3D RDNAPTRANS(TM)2018 transformation. Accuracy by definition exact."],
            AREA["Netherlands - onshore and offshore."],
            BBOX[50.75,2.53,55.77,7.22]],
        ID["EPSG",9282],
        REMARK["Defines Amersfoort (also known as RD Bessel). Horizontal component of official transformation RDNAPTRANS(TM)2018. Replaces Amersfoort to ETRS89 (7) (CT code 7000)."]]]

Definition: PROJ.4

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

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4289","+proj=longlat +ellps=bessel +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Amersfoort",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Amersfoort",
            "ellipsoid": {
                "name": "Bessel 1841",
                "semi_major_axis": 6377397.155,
                "inverse_flattening": 299.1528128
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4289
        },
        "remarks": "Use of geographic2D CRS Amersfoort (code 4289) for spatial referencing is discouraged. Use projected CRS Amersfoort / RD New (code 28992) or ETRS89-NLD [AGRS2010] (code 11037)."
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "ETRS89-NLD [AGRS2010]",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "AGRS2010 (ETRF2000)",
            "anchor_epoch": 2010.5,
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 11037
        },
        "remarks": "Horizontal component of national realization of ETRS89 in the Netherlands, aligned to ETRF2000."
    },
    "transformation": {
        "name": "Amersfoort to ETRS89-NLD [AGRS2010] (9)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "rdtrans2018.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9282
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=bessel"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=bessel +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=bessel +no_defs +type=crs">
	</Layer>
</Map>