Source: 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=crsMore about EPSG:6668 →
Convert EPSG:6668 to EPSG:4301
Online coordinate converter from JGD2011 (EPSG:6668) to Tokyo (EPSG:4301). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
The EPSG dataset defines official transformation parameters for the reverse direction. See Tokyo to JGD2011 — the parameters are invertible.
Convert EPSG:6668 to EPSG:4301 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:6668", "EPSG:4301", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: 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=crsMore about EPSG:4301 →
Frequently asked questions
- How accurate is converting JGD2011 to Tokyo?
- 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.