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Convert NAD83(CSRS)v2 to NAD83(CSRS)v4

Convert coordinates from NAD83(CSRS)v2 (EPSG:8237) to NAD83(CSRS)v4 (EPSG:8246) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-8237-to-epsg-8246

Official EPSG transformation from NAD83(CSRS)v2 to NAD83(CSRS)v4

The EPSG Geodetic Parameter Dataset defines 1 transformation between NAD83(CSRS)v2 (EPSG:8237) and NAD83(CSRS)v4 (EPSG:8246). Its parameters, accuracy and area of use are listed below.

Convert EPSG:8237 to EPSG:8246 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:8237", "EPSG:8246", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:8237 — NAD83(CSRS)v2

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

+proj=longlat +ellps=GRS80 +no_defs +type=crs
More about EPSG:8237 →

Target: EPSG:8246 — NAD83(CSRS)v4

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

+proj=longlat +ellps=GRS80 +no_defs +type=crs
More about EPSG:8246 →

Frequently asked questions

How accurate is converting NAD83(CSRS)v2 to NAD83(CSRS)v4?
The most accurate official EPSG transformation between these systems is accurate to about ±0.1 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) 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:8246 to EPSG:8237 →