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Convert ETRS89-NOR [EUREF89] to ETRS89-NOR [EUREF89] + NN54 height

Convert coordinates from ETRS89-NOR [EUREF89] (EPSG:10874) to ETRS89-NOR [EUREF89] + NN54 height (EPSG:6144) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-10874-to-epsg-6144

Official EPSG transformation from ETRS89-NOR [EUREF89] to ETRS89-NOR [EUREF89] + NN54 height

The EPSG Geodetic Parameter Dataset defines 1 transformation between ETRS89-NOR [EUREF89] (EPSG:10874) and ETRS89-NOR [EUREF89] + NN54 height (EPSG:6144). Its parameters, accuracy and area of use are listed below.

ETRS89-NOR [EUREF89] to ETRS89-NOR [EUREF89] + NN54 height (1)

EPSG:9594±0.02 m
Method:
Geog3D to Geog2D+GravityRelatedHeight (Gravsoft)
Area of use:
Norway - onshore
Scope:
Reversible geoid model transformation.

Grid file: href2008a.bin

Reversible alternative to ETRS89-NOR [EUREF89] to NN54 height (1) (code 9484). The interpolation CRS is EUREF89 but using any realization of ETRS89 including ensemble-based EPSG:4258 is adequate for grid interpolation.

Convert EPSG:10874 to EPSG:6144 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:10874", "EPSG:6144", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:10874 — ETRS89-NOR [EUREF89]

geographic system using latitude, longitude and ellipsoidal height · Area of use: Norway

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:10874 →

Target: EPSG:6144 — ETRS89-NOR [EUREF89] + NN54 height

compound horizontal + vertical reference system · Area of use: Norway - onshore

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +geoidgrids=no_kv_href2008a.tif +geoid_crs=WGS84 +vunits=m +no_defs +type=crs
More about EPSG:6144 →

Frequently asked questions

How accurate is converting ETRS89-NOR [EUREF89] to ETRS89-NOR [EUREF89] + NN54 height?
The most accurate official EPSG transformation between these systems is accurate to about ±0.02 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) in a desktop GIS.
Does my data leave the browser when I use this converter?
No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.
Need the reverse? Convert EPSG:6144 to EPSG:10874 →