Convert ITRF2014 to KSA-GRF17

Convert coordinates from ITRF2014 (EPSG:7789) to KSA-GRF17 (EPSG:9331) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

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Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-7789-to-epsg-9331

Official EPSG transformation from ITRF2014 to KSA-GRF17

The EPSG Geodetic Parameter Dataset defines 1 transformation between ITRF2014 (EPSG:7789) and KSA-GRF17 (EPSG:9331). Its parameters, accuracy and area of use are listed below.

ITRF2014 to KSA-GRF17 (1)

EPSG:9334±0.001 m

Method:: Time-dependent Position Vector tfm (geocentric)
Area of use:: Saudi Arabia
Scope:: Geodesy.

Parameter	Value	Unit
X-axis translation(tx)	0	millimetre
Y-axis translation(ty)	0	millimetre
Z-axis translation(tz)	0	millimetre
X-axis rotation(rx)	0	milliarc-second
Y-axis rotation(ry)	0	milliarc-second
Z-axis rotation(rz)	0	milliarc-second
Scale difference(ds)	0	parts per billion
rate tx	0	millimetres per year
rate ty	0	millimetres per year
rate tz	0	millimetres per year
rate rx	-1.199	milliarc-seconds per year
rate ry	0.107	milliarc-seconds per year
rate rz	-1.468	milliarc-seconds per year
rate ds	0	parts per billion per year
epoch	2017	year

Arabian plate rotations derived from obs. at 41 sites with at least 2.5y of continuous observations. May be approximated by position vector CT with rX=8.393 mas, rY=-0.749 mas, rZ=10.276 mas, valid at 2017.0, and degrading by ~2.5cm per year (code 9383).

Convert EPSG:7789 to EPSG:9331 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:7789", "EPSG:9331", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:7789 — ITRF2014

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:7789 →

Target: EPSG:9331 — KSA-GRF17

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: Saudi Arabia

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:9331 →

Frequently asked questions

How accurate is converting ITRF2014 to KSA-GRF17?: The most accurate official EPSG transformation between these systems is accurate to about ±0.001 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation 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:9331 to EPSG:7789 →