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Convert EPSG:10241 to EPSG:4978

Online coordinate converter from SYC20 Grid + ODN height (EPSG:10241) to WGS 84 (EPSG:4978). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.

Direct link to this transformation: epsgtransform.com/transform/epsg-10241-to-epsg-4978

Convert EPSG:10241 to EPSG:4978 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:10241", "EPSG:4978", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:10241 — SYC20 Grid + ODN height

compound horizontal + vertical reference system · Area of use: UK - Shrewsbury to Crewe

+proj=tmerc +lat_0=52.9 +lon_0=-2.6 +k=1 +x_0=110094.4312 +y_0=120623.8396 +ellps=GRS80 +units=m +geoidgrids=uk_os_OSGM15_GB.tif +geoid_crs=WGS84 +vunits=m +no_defs +type=crs
More about EPSG:10241 →

Target: EPSG:4978 — WGS 84

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +datum=WGS84 +units=m +no_defs +type=crs
More about EPSG:4978 →

Frequently asked questions

How accurate is converting SYC20 Grid + ODN height to WGS 84?
Projection-only conversions are accurate to floating-point precision. If a datum shift is involved, browser-based tools use Helmert parameters which are accurate to roughly 1-5 m; for surveying-grade work apply the official grid-shift 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:4978 to EPSG:10241 →