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Convert Tokyo to JGD2011

Convert coordinates from Tokyo (EPSG:4301) to JGD2011 (EPSG:6668) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4301-to-epsg-6668

Official EPSG transformations from Tokyo to JGD2011

The EPSG Geodetic Parameter Dataset defines 2 transformations between Tokyo (EPSG:4301) and JGD2011 (EPSG:6668). Each applies to a specific area — pick the one whose area of use covers your data.

Tokyo to JGD2011 (2)

EPSG:6740±0.2 mBest accuracy
Method:
NTv2
Area of use:
Japan onshore excluding northern main province
Scope:
Engineering survey, topographic mapping.

Grid file: tky2jgd.gsb

Parameter values from Tokyo to JGD2000 (2) (tfm code 6712) as in area of applicability JGD2011 = JGD2000. NTv2 grid derived by ESRI from that supplied by GSI in application tky2jgd. See Tokyo to JGD2011 (1) (tfm code 6714) for northern Honshu area.

Tokyo to JGD2011 (1)

EPSG:6714±0.3 m
Method:
Concatenated operation
Area of use:
Japan - northern Honshu
Scope:
Engineering survey, topographic mapping.
  1. Tokyo to JGD2000 (2) (null)
  2. JGD2000 to JGD2011 (1) (null)

See Tokyo to JGD2011 (2) (code 6740) for areas other than northern Honshu.

Convert EPSG:4301 to EPSG:6668 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4301", "EPSG:6668", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4301 — Tokyo

geographic system using latitude and longitude on an ellipsoid · Area of use: Asia - Japan and Korea

+proj=longlat +ellps=bessel +towgs84=-146.414,507.337,680.507,0,0,0,0 +no_defs +type=crs
More about EPSG:4301 →

Target: EPSG:6668 — JGD2011

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

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:6668 →

Frequently asked questions

How accurate is converting Tokyo to JGD2011?
The most accurate official EPSG transformation between these systems is accurate to about ±0.2 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:6668 to EPSG:4301 →