Convert ITRF2000 to SIRGAS 2000

Convert coordinates from ITRF2000 (EPSG:4919) to SIRGAS 2000 (EPSG:4988) — 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-4919-to-epsg-4988

Official EPSG transformation from ITRF2000 to SIRGAS 2000

The EPSG Geodetic Parameter Dataset defines 1 transformation between ITRF2000 (EPSG:4919) and SIRGAS 2000 (EPSG:4988). Its parameters, accuracy and area of use are listed below.

ITRF2000 to SIRGAS 2000 (1)

EPSG:9052±0.01 m

Method:: Time-specific Position Vector transform (geocen)
Area of use:: Latin America - SIRGAS 2000 by country
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
epoch	2000.4	year

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

Convert EPSG:4919 to EPSG:4988 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4919", "EPSG:4988", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4919 — ITRF2000

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

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

More about EPSG:4919 →

Target: EPSG:4988 — SIRGAS 2000

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: Latin America - SIRGAS 2000 by country

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

More about EPSG:4988 →

Frequently asked questions

How accurate is converting ITRF2000 to SIRGAS 2000?: 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:4988 to EPSG:4919 →