EPSG Library · Levant, Iraq and Turkey

EPSG:3394 — Nahrwan 1934 / Iraq zone

Source: EPSG Dataset via PROJ 9.5.1 · Updated 2026-10-05

Summary

EPSG:3394 (Nahrwan 1934 / Iraq zone) is a projected coordinate reference system on the Nahrwan 1934 datum using the Lambert Conic Conformal (1SP) method, with coordinates in metres. Area of use: Iraq - onshore; Iran - onshore northern Gulf coast and west bordering southeast Iraq.

Type: projected
Datum: Nahrwan 1934
Units: metre
Axes: E, N

Definition

EPSG:3394 as published in the EPSG Dataset (PROJ 9.5.1).
Property	Value
EPSG code	EPSG:3394
Name	Nahrwan 1934 / Iraq zone
Type	Projected CRS
Datum	Nahrwan 1934
Ellipsoid	Clarke 1880 (RGS) (a = 6,378,249.145 m, 1/f = 293.465)
Prime meridian	Greenwich
Projection method	Lambert Conic Conformal (1SP)
Axes	Easting (E, east, metre); Northing (N, north, metre)
Scope	Engineering survey, topographic mapping.
Bounding box	38.79° to 51.06° longitude, 29.06° to 37.39° latitude

Area of use

Iraq - onshore; Iran - onshore northern Gulf coast and west bordering southeast Iraq.

Projection parameters

Lambert Conic Conformal (1SP) parameters.
Parameter	Value	Unit
Latitude of natural origin	32.5	degree
Longitude of natural origin	45	degree
Scale factor at natural origin	0.9987864078	unity
False easting	1,500,000	metre
False northing	1,166,200	metre

Example coordinates

A WGS 84 point at longitude 44.925°, latitude 33.225° (inside the area of use) has these coordinates in EPSG:3394:

Computed with PROJ using the EPSG default operation: unavailable until proj_trans is called.
Axis	Value	Unit
E	1,492,948.079	m
N	1,246,367.898	m

At this point the projection scale factor is 0.99886620 and the grid convergence is -0.040297°.

Open this conversion in the coordinate converter

Transformations to WGS 84

Candidate operations from the EPSG Dataset, best first as ranked by PROJ.
Operation	Accuracy	Area of use
axis order change (2D) + Nahrwan 1934 to WGS 84 (6) + axis order change (2D)	30 m	Iraq - onshore.

Transformations change the datum, so each has an accuracy and an area of use. Choose the most accurate one that covers your data and record its name. See datum transformations.

Definitions and downloads

PROJ string

+proj=lcc +lat_1=32.5 +lat_0=32.5 +lon_0=45 +k_0=0.9987864078 +x_0=1500000 +y_0=1166200 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs

A PROJ string cannot carry every EPSG detail (axis order, datum ensemble, transformations). Prefer WKT2 or the EPSG code itself.

Proj4js definition used by the converter

+proj=lcc +lat_1=32.5 +lat_0=32.5 +lon_0=45 +k_0=0.9987864078 +x_0=1500000 +y_0=1166200 +a=6378249.145 +rf=293.465 +units=m +towgs84=-242.2,-144.9,370.3 +no_defs

Datum shift from Nahrwan 1934 to WGS 84 (6) (EPSG accuracy 30 m), the best single Helmert operation for this area of use. Where PROJ prefers a grid-based or multi-step operation (see the table above), results can differ by up to that operation's accuracy.

WKT2:2019

PROJCRS["Nahrwan 1934 / Iraq zone", BASEGEOGCRS["Nahrwan 1934", DATUM["Nahrwan 1934", ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4744]], CONVERSION["Iraq zone", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",32.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",45, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9987864078, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",1500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",1166200, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Iraq - onshore; Iran - onshore northern Gulf coast and west bordering southeast Iraq."], BBOX[29.06,38.79,37.39,51.06]], ID["EPSG",3394]]

Downloads

3394.prj — ESRI WKT for shapefiles
3394.wkt — OGC WKT2:2019

FAQ

What is EPSG:3394?

Where can EPSG:3394 be used?

Its area of use is: Iraq - onshore; Iran - onshore northern Gulf coast and west bordering southeast Iraq.

Is EPSG:3394 in metres or degrees?

EPSG:3394 is projected, so coordinates are easting and northing in metres, not degrees.

How do I convert EPSG:3394 to latitude and longitude?

Transform from EPSG:3394 to EPSG:4326 (WGS 84). In GeoCAD Bridge open the coordinate converter with EPSG:3394 preselected, enter easting and northing, and choose WGS 84 as the target.

How accurate is the transformation from EPSG:3394 to WGS 84?

The most accurate EPSG transformation listed here is “axis order change (2D) + Nahrwan 1934 to WGS 84 (6) + axis order change (2D)”, with a stated accuracy of 30 m for Iraq - onshore.. Always check the area of use before applying it.

Coordinate systems

Articles

Tools

References

IOGP. EPSG Geodetic Parameter Dataset, epsg.org/crs_3394.
PROJ 9.5.1 / pyproj 3.7.2, used to compute every value on this page.

Cite this page

GeoCAD Bridge. “EPSG:3394 — Nahrwan 1934 / Iraq zone.” GeoCAD Bridge EPSG Library, updated 2026-10-05. https://www.geocadbridge.com/epsg/3394/