Convert ITRF93 to NAD83(CSRS96)

Convert coordinates from ITRF93 (EPSG:4915) to NAD83(CSRS96) (EPSG:8230) — 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-4915-to-epsg-8230

Official EPSG transformation from ITRF93 to NAD83(CSRS96)

The EPSG Geodetic Parameter Dataset defines 1 transformation between ITRF93 (EPSG:4915) and NAD83(CSRS96) (EPSG:8230). Its parameters, accuracy and area of use are listed below.

ITRF93 to NAD83(CSRS96) (1)

EPSG:8257±0 m

Method:: Time-dependent Position Vector tfm (geocentric)
Area of use:: Canada
Scope:: Geodesy. Defines NAD83(CSRS96).

Parameter	Value	Unit
X-axis translation(tx)	0.94	metre
Y-axis translation(ty)	-1.979	metre
Z-axis translation(tz)	-0.534	metre
X-axis rotation(rx)	-27.09	milliarc-second
Y-axis rotation(ry)	-16.22	milliarc-second
Z-axis rotation(rz)	-9.87	milliarc-second
Scale difference(ds)	4.1	parts per billion
rate tx	0.0023	metres per year
rate ty	0.0004	metres per year
rate tz	-0.0008	metres per year
rate rx	0.078	milliarc-seconds per year
rate ry	0.962	milliarc-seconds per year
rate rz	-0.008	milliarc-seconds per year
rate ds	0.11	parts per billion per year
epoch	1988	year

Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Superseded by CT from ITRF94 (see code 8258).

Convert EPSG:4915 to EPSG:8230 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4915", "EPSG:8230", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4915 — ITRF93

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

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

More about EPSG:4915 →

Target: EPSG:8230 — NAD83(CSRS96)

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

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

More about EPSG:8230 →

Frequently asked questions

How accurate is converting ITRF93 to NAD83(CSRS96)?: The most accurate official EPSG transformation between these systems is accurate to about ±0 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:8230 to EPSG:4915 →