Convert ITRF2014 to LibRef21

Convert coordinates from ITRF2014 (EPSG:7789) to LibRef21 (EPSG:10798) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-7789-to-epsg-10798

Official EPSG transformation from ITRF2014 to LibRef21

The EPSG Geodetic Parameter Dataset defines 1 transformation between ITRF2014 (EPSG:7789) and LibRef21 (EPSG:10798). Its parameters, accuracy and area of use are listed below.

ITRF2014 to LibRef21 (1)

EPSG:10848±0.01 m

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

Parameter	Value	Unit
X-axis translation(tx)	-47.48	millimetre
Y-axis translation(ty)	11.76	millimetre
Z-axis translation(tz)	-0.58	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	-0.099	milliarc-seconds per year
rate ry	0.614	milliarc-seconds per year
rate rz	-0.733	milliarc-seconds per year
rate ds	0	parts per billion per year
epoch	2021.112	year

Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m.

Convert EPSG:7789 to EPSG:10798 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:7789", "EPSG:10798", 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:10798 — LibRef21

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

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

More about EPSG:10798 →

Frequently asked questions

How accurate is converting ITRF2014 to LibRef21?: The most accurate official EPSG transformation between these systems is accurate to about ±0.01 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:10798 to EPSG:7789 →