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Convert EPSG:9311 to EPSG:4269

Online coordinate converter from NAD27 / US National Atlas Equal Area (EPSG:9311) to NAD83 (EPSG:4269). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.

Direct link to this transformation: epsgtransform.com/transform/epsg-9311-to-epsg-4269

Convert EPSG:9311 to EPSG:4269 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:9311", "EPSG:4269", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:9311 — NAD27 / US National Atlas Equal Area

projected system measured in linear units (typically metres) · Area of use: USA

+proj=laea +R_A +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +datum=NAD27 +units=m +no_defs +type=crs
More about EPSG:9311 →

Target: 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 →

Frequently asked questions

How accurate is converting NAD27 / US National Atlas Equal Area to NAD83?
Projection-only conversions are accurate to floating-point precision. If a datum shift is involved, browser-based tools use Helmert parameters which are accurate to roughly 1-5 m; for surveying-grade work apply the official grid-shift 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:4269 to EPSG:9311 →