Greek (Athens) to Greek (1)
EPSG:1761±0 m- Method:
- Longitude rotation
- Area of use:
- Greece - onshore
- Scope:
- Change of prime meridian.
| Parameter | Value | Unit |
|---|---|---|
| Longitude offset | 23.4258815 | sexagesimal DMS |
Convert Greek (Athens) to Greek
Convert coordinates from Greek (Athens) (EPSG:4815) to Greek (EPSG:4120) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformation from Greek (Athens) to Greek
The EPSG Geodetic Parameter Dataset defines 1 transformation between Greek (Athens) (EPSG:4815) and Greek (EPSG:4120). Its parameters, accuracy and area of use are listed below.
Convert EPSG:4815 to EPSG:4120 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4815", "EPSG:4120", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Source: EPSG:4815 — Greek (Athens)
geographic system using latitude and longitude on an ellipsoid · Area of use: Greece - onshore
+proj=longlat +ellps=bessel +pm=athens +no_defs +type=crsMore about EPSG:4815 →
Target: EPSG:4120 — Greek
geographic system using latitude and longitude on an ellipsoid · Area of use: Greece - onshore
+proj=longlat +ellps=bessel +no_defs +type=crsMore about EPSG:4120 →
Frequently asked questions
- How accurate is converting Greek (Athens) to Greek?
- The most accurate official EPSG transformation between these systems is accurate to about ±0 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.