EPSG:CODE

Datum 73 to WGS 84 (1)

EPSG:4274 → EPSG:4326

Coordinate Reference Systems

Source CRS
EPSG:4274
Datum 73
Geographic 2D
Target CRS
EPSG:4326
WGS 84
Geographic 2D

Transform Coordinates

Remarks

Parameter values from Datum 73 to ETRS89 (1) (code 1657). Assumes ETRS89 and WGS 84 can be considered the same to within the accuracy of the transformation. Replaced by Datum 73 to WGS 84 (4) (tfm code 1987).

Frequently Asked Questions

How do I convert Datum 73 to WGS 84 coordinates?

Use the coordinate transformation tool above to convert Datum 73 (EPSG:4274) to WGS 84 (EPSG:4326). Enter your source coordinates and click Transform. This uses the Position Vector transformation (geog2D domain) method with 2m accuracy.

How do I transform Datum 73 to WGS 84 using Proj4js?

Use proj4.defs to define both EPSG:4274 and EPSG:4326, then call proj4(source, target, [x, y]) to convert coordinates programmatically.

What is the accuracy of the Datum 73 to WGS 84 transformation?

This transformation (EPSG:1658) has an accuracy of 2m using the Position Vector transformation (geog2D domain) method. Area of use: Portugal - mainland - onshore.