Convert GSK-2011 to WGS 84

Convert coordinates from GSK-2011 (EPSG:7683) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-7683-to-epsg-4326

About converting GSK-2011 to WGS 84

GSK-2011 (EPSG:7683) is Russia's state geodetic coordinate system adopted in 2011, replacing the Soviet-era SK-42/SK-95 systems for official use. It is realised from GLONASS observations and aligned with ITRF at the centimetre-to-decimetre level.

For practical purposes GSK-2011 and WGS 84 agree to about a metre, and the published EPSG operation reflects that. The interesting conversions are usually legacy-related: bringing SK-42 (Pulkovo 1942) archives forward via GSK-2011.

If you work with Russian official data post-2017, expect GSK-2011 or its Gauss–Krüger zones rather than the older Pulkovo systems.

Why people convert EPSG:7683 to EPSG:4326

Aligning modern Russian official data with global frames
Bridging SK-42 archives to current GNSS workflows
Integrating GLONASS-derived positions with WGS 84 data
Cross-referencing PZ-90.11, GSK-2011 and WGS 84 frames

Try it: Moscow, Russia

Input (EPSG:7683): 37.6173, 55.7558

Official EPSG transformation from GSK-2011 to WGS 84

The EPSG Geodetic Parameter Dataset defines 1 transformation between GSK-2011 (EPSG:7683) and WGS 84 (EPSG:4326). Its parameters, accuracy and area of use are listed below.

GSK-2011 to WGS 84 (1)

EPSG:9773±1 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Russia
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.

Parameter	Value	Unit
X-axis translation(tx)	0	metre
Y-axis translation(ty)	0	metre
Z-axis translation(tz)	0	metre

For many purposes GSK-2011 can be considered to be coincident with WGS 84. This approximation ignores the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.

Convert EPSG:7683 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:7683", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:7683 — GSK-2011

geographic system using latitude and longitude on an ellipsoid · Area of use: Russia

+proj=longlat +ellps=GSK2011 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs

More about EPSG:7683 →

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 different are GSK-2011 and WGS 84?: About a metre or less — both are ITRF-aligned modern frames. The visible differences in Russian data usually come from legacy SK-42 sources, not from GSK-2011 itself.
What is the relationship between GSK-2011 and PZ-90?: PZ-90.11 is the GLONASS broadcast frame; GSK-2011 is the national mapping frame. Both are ITRF-aligned and agree at the decimetre level.
How accurate is converting GSK-2011 to WGS 84?: The most accurate official EPSG transformation between these systems is accurate to about ±1 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:7683 →