Convert NAD83(CSRS) to WGS 84

Convert coordinates from NAD83(CSRS) (EPSG:4617) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-4617-to-epsg-4326

Official EPSG transformations from NAD83(CSRS) to WGS 84

The EPSG Geodetic Parameter Dataset defines 2 transformations between NAD83(CSRS) (EPSG:4617) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

NAD83(CSRS) to WGS 84 (2)

EPSG:1946±1 mBest accuracy

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Canada
Scope:: Approximation for medium and low accuracy applications ignoring static/dynamic CRS differences.

Parameter	Value	Unit
X-axis translation(tx)	-0.991	metre
Y-axis translation(ty)	1.9072	metre
Z-axis translation(tz)	0.5129	metre
X-axis rotation(rx)	-1.25033e-7	radian
Y-axis rotation(ry)	-4.6785e-8	radian
Z-axis rotation(rz)	-5.6529e-8	radian
Scale difference(ds)	0	parts per million

Approximation derived from tfm code 6864 ignoring time-dependent parameters and assuming ITRF96(1997.0) and WGS 84 can be considered the same within the accuracy of the transformation.

NAD83(CSRS) to WGS 84 (1)

EPSG:1842±2 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Canada
Scope:: (null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.

Parameter	Value	Unit
X-axis translation(tx)	0	metre
Y-axis translation(ty)	0	metre
Z-axis translation(tz)	0	metre

For many purposes NAD83(CSRS) can be considered to be coincident with WGS 84.

Convert EPSG:4617 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4617", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4617 — NAD83(CSRS)

geographic system using latitude and longitude on an ellipsoid · Area of use: Canada

+proj=longlat +ellps=GRS80 +no_defs +type=crs

More about EPSG:4617 →

Target: EPSG:4326 — WGS 84

geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)

+proj=longlat +datum=WGS84 +no_defs +type=crs

More about EPSG:4326 →

Frequently asked questions

How accurate is converting NAD83(CSRS) to WGS 84?: The most accurate official EPSG transformation between these systems is accurate to about ±1 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:4326 to EPSG:4617 →