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Convert NAD83 to NAD83(CSRS)v2

Convert coordinates from NAD83 (EPSG:4269) to NAD83(CSRS)v2 (EPSG:8237) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4269-to-epsg-8237

Official EPSG transformations from NAD83 to NAD83(CSRS)v2

The EPSG Geodetic Parameter Dataset defines 3 transformations between NAD83 (EPSG:4269) and NAD83(CSRS)v2 (EPSG:8237). Each applies to a specific area — pick the one whose area of use covers your data.

NAD83 to NAD83(CSRS)v2 (6)

EPSG:9116±0.1 mBest accuracy
Method:
NTv2
Area of use:
Canada - British Columbia
Scope:
Geodesy.

Grid file: BC_93_98.GSB

Derived through NAD83(CSRS)v2. Replaced by NAD83 to NAD83(CSRS) (7) (CT code 9117) for CRD, NAD83 to NAD83(CSRS) (8) (CT code 9118) for north Vancouver Island and NAD83 to NAD83(CSRS) (9) (CT code 9119) for mainland.

NAD83 to NAD83(CSRS)v2 (1)

EPSG:9241±1.5 m
Method:
NTv2
Area of use:
Canada - Quebec
Scope:
Transformation of coordinates at 1m to 2m level of accuracy.

Grid file: NAD83-98.gsb

Also found with file name NA83SCRS.GSB. Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(CSRS)v2 (code 8237) have longitudes positive east. Can be taken as an approximate CT NAD83 to WGS 84 - see code 1696.

NAD83 to NAD83(CSRS)v2 (2)

EPSG:9887±1.5 m
Method:
NTv2
Area of use:
Canada - Saskatchewan
Scope:
Transformation of coordinates at 1m to 2m level of accuracy.

Grid file: SK83-98.gsb

Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1697.

Convert EPSG:4269 to EPSG:8237 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4269", "EPSG:8237", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4269 — NAD83

geographic system using latitude and longitude on an ellipsoid · Area of use: North America - NAD83

+proj=longlat +datum=NAD83 +no_defs +type=crs
More about EPSG:4269 →

Target: 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 →

Frequently asked questions

How accurate is converting NAD83 to NAD83(CSRS)v2?
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:8237 to EPSG:4269 →