EPSG:4289 — Amersfoort

Geographic 2D · Netherlands

Export Formats

OGC WKT

GEOGCS[
    "Amersfoort",
    DATUM[
        "Amersfoort",
        SPHEROID["Bessel 1841",6377397.155,299.1528128],
        TOWGS84[565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4289"]
]

WKT2

GEOGCRS[
    "Amersfoort",
    DATUM[
        "Amersfoort",
        ELLIPSOID[
            "Bessel 1841",
            6377397.155,
            299.1528128,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7004]
        ],
        ID["EPSG",6289]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    DEFININGTRANSFORMATION[
        "Amersfoort to ETRS89-NLD [AGRS2010] (9)",
        ID["EPSG",9282]
    ],
    ID["EPSG",4289]
]

PROJ.4

+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4289", "+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4289,
  "name": "Amersfoort",
  "kind": "geographic 2D",
  "area": "Netherlands",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    50.75,
    2.53,
    55.77,
    7.22
  ],
  "proj4": "+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +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 (4289, 'EPSG', 4289, '+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +no_defs +type=crs', 'GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4289=GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]

Related Coordinate Systems

Available Transformations (15)

Transformation	Source → Target	Accuracy (m)
Amersfoort to ETRS89-NLD [AGRS2010] (9)	4289 → 11037	0
Amersfoort to ETRS89 (7)	4289 → 4258	0.001
Amersfoort to ETRS89-NLD [AGRS2010] (8)	4289 → 11037	0.25
Amersfoort to ETRS89 (2)	4289 → 4258	0.5
Amersfoort to ETRS89 (1)	4289 → 4258	0.5
Amersfoort to ETRS89 (5)	4289 → 4258	0.5
Amersfoort to ETRS89 (6)	4289 → 4258	0.5
Amersfoort to ETRS89 (3)	4289 → 4258	0.5
Amersfoort to ETRS89 (4)	4289 → 4258	0.5
Amersfoort to WGS 84 (1)	4289 → 4326	1

Other CRS for NL

Other CRS using Amersfoort

Frequently Asked Questions

How do I add EPSG:4289 to GeoServer?

Add the following definition to your GeoServer configuration:

4289=GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]

Read the full GeoServer guide →

How do I add EPSG:4289 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4289, 'EPSG', 4289, '+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +no_defs +type=crs', 'GEOGCS["Amersfoort",DATUM["Amersfoort",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4289"]]');

Read the full PostGIS guide →

How do I add EPSG:4289 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4289 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4289", "+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,1.9342,-1.6677,9.1019,4.0725 +no_defs +type=crs");

Read the full Proj4js guide →

Type

Geographic 2D

Unit

degree (supplier to define representation)

Datum

Amersfoort

Ellipsoid

Bessel 1841

Prime Meridian

Greenwich

Area of Use

Netherlands

Netherlands - onshore and offshore.

Coordinate System

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

Center Coordinates

4.87 53.26

Projected Bounds

55.77 2.537.22 50.75

WGS84 Bounds

55.77 2.537.22 50.75

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).

Country Code

EPSG

4289