Skip to content
transform

Convert ID74 to WGS 84

Convert coordinates from ID74 (EPSG:4238) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4238-to-epsg-4326

Official EPSG transformations from ID74 to WGS 84

The EPSG Geodetic Parameter Dataset defines 3 transformations between ID74 (EPSG:4238) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

ID74 to WGS 84 (3)

EPSG:1833±3 mBest accuracy
Method:
Coordinate Frame rotation (geog2D domain)
Area of use:
Indonesia - onshore
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.
ParameterValueUnit
X-axis translation(tx)-1.977metre
Y-axis translation(ty)-13.06metre
Z-axis translation(tz)-9.993metre
X-axis rotation(rx)-0.364arc-second
Y-axis rotation(ry)-0.254arc-second
Z-axis rotation(rz)-0.689arc-second
Scale difference(ds)-1.037parts per million

Parameter values from ID74 to DGN95 (1) (code 15911) assuming that DGN95 is equivalent to WGS 84 within the accuracy of the transformation.

ID74 to WGS 84 (2)

EPSG:1832±25 m
Method:
Position Vector transformation (geog2D domain)
Area of use:
Indonesia - onshore
Scope:
Oil and gas exploration and production.
ParameterValueUnit
X-axis translation(tx)2.691metre
Y-axis translation(ty)-14.757metre
Z-axis translation(tz)4.724metre
X-axis rotation(rx)0arc-second
Y-axis rotation(ry)0arc-second
Z-axis rotation(rz)0.774arc-second
Scale difference(ds)-0.6parts per million

Derived via coordinates of 2 Pulse8 stations. Use of ID74 to WGS 84 (3) (code 1833) is recommended.

ID74 to WGS 84 (1)

EPSG:1248±44 m
Method:
Geocentric translations (geog2D domain)
Area of use:
Indonesia - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)-24metre
Y-axis translation(ty)-15metre
Z-axis translation(tz)5metre

Derived at 1 station. Accuracy 25m in each axis.

Convert EPSG:4238 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4238", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4238 — ID74

geographic system using latitude and longitude on an ellipsoid · Area of use: Indonesia - onshore

+proj=longlat +a=6378160 +rf=298.247 +no_defs +type=crs
More about EPSG:4238 →

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 ID74 to WGS 84?
The most accurate official EPSG transformation between these systems is accurate to about ±3 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:4238 →