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Convert IGM95 to RDN2008

Convert coordinates from IGM95 (EPSG:4670) to RDN2008 (EPSG:6706) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4670-to-epsg-6706

Official EPSG transformation from IGM95 to RDN2008

The EPSG Geodetic Parameter Dataset defines 1 transformation between IGM95 (EPSG:4670) and RDN2008 (EPSG:6706). Its parameters, accuracy and area of use are listed below.

IGM95 to RDN2008 (1)

EPSG:9737±0.01 m
Method:
NTv2
Area of use:
Italy - 6°22'E to 18°40'E and north of 35°16'N; San Marino, Vatican City State
Scope:
Transformation of coordinates at 0.01m level of accuracy.

Grid file: 35160622_47161840_F89_F00.gsb

For the reverse transformation from RDN2008 to IGM95, iteration may be avoided by using an alternative grid file (35160622_47161840_F00_F89.gsb).

Convert EPSG:4670 to EPSG:6706 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4670", "EPSG:6706", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4670 — IGM95

geographic system using latitude and longitude on an ellipsoid · Area of use: Italy - including San Marino and Vatican

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:4670 →

Target: EPSG:6706 — RDN2008

geographic system using latitude and longitude on an ellipsoid · Area of use: Italy - including San Marino and Vatican

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:6706 →

Frequently asked questions

How accurate is converting IGM95 to RDN2008?
The most accurate official EPSG transformation between these systems is accurate to about ±0.01 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) 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:6706 to EPSG:4670 →