EPSG:4289

Amersfoort

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

Selected transformation

Name: Amersfoort to ETRS89-NLD [AGRS2010] (10)

Method: NTv2 & Coordinate Frame rotation (geocentric domain)

Remarks: Replaces Amersfoort to ETRS89 (5) and (6) (CT codes 4830 and 4831). Derived using ETRF2000. In official transformation used with an ellipsoidal height of 0m in Amersfoort for the forward transformation and 43m in ETRS89-NLD [AGRS2010] for the reverse transformation. May be approximated to 1mm using NTv2 transformation Amersfoort to ETRS89-NLD [AGRS2010] (9) (code 9282) [note - uses different NTv2 file to this CT 11397] or to 25cm using Amersfoort to ETRS89-NLD [AGRS2010] (8) (code 9281) which ignores the correction grid.

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

Revision date: 2026-03-18

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, https://www.nsgi.nl/.

Revision date: 2026-07-21

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

Remarks: Use of this geographic2D CRS (Amersfoort, code 4289) for spatial referencing is discouraged. Use projected CRS RD (code 28992) or geodetic CRS ETRS89-NLD [AGRS2010] (codes 11035-11037).

Area of use: Netherlands - onshore and offshore.

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

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Center coordinates
4.88 53.26

WGS84 bounds:
2.53 50.75
7.22 55.77

Netherlands - onshore and offshore.
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Definition: OGC Well Known Text

GEOGCS["Amersfoort",
    DATUM["Amersfoort",
        SPHEROID["Bessel 1841",6377397.155,299.1528128,
            AUTHORITY["EPSG","7004"]],
        AUTHORITY["EPSG","6289"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4289"]]

Definition: OGC Well Known Text 2 (2019)

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 this geographic2D CRS (Amersfoort, code 4289) for spatial referencing is discouraged. Use projected CRS RD (code 28992) or geodetic CRS ETRS89-NLD [AGRS2010] (codes 11035-11037)."]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Amersfoort",
    DATUM["D_Amersfoort",
        SPHEROID["Bessel_1841",6377397.155,299.1528128]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

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": "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"
            }
        ]
    },
    "scope": "Intermediate CRS in transformation to and from projected CRS.",
    "area": "Netherlands - onshore and offshore.",
    "bbox": {
        "south_latitude": 50.75,
        "west_longitude": 2.53,
        "north_latitude": 55.77,
        "east_longitude": 7.22
    },
    "id": {
        "authority": "EPSG",
        "code": 4289
    },
    "remarks": "Use of this geographic2D CRS (Amersfoort, code 4289) for spatial referencing is discouraged. Use projected CRS RD (code 28992) or geodetic CRS ETRS89-NLD [AGRS2010] (codes 11035-11037)."
}

Definition: GeoServer

4289=GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128,AUTHORITY["EPSG","7004"]],AUTHORITY["EPSG","6289"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]

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>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4289, 'EPSG', 4289, '+proj=longlat +ellps=bessel +no_defs +type=crs', 'GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128,AUTHORITY["EPSG","7004"]],AUTHORITY["EPSG","6289"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]');