Source: EPSG:7789 — ITRF2014
geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World
+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crsMore about EPSG:7789 →
Convert EPSG:7789 to EPSG:4424
Online coordinate converter from ITRF2014 (EPSG:7789) to NAD83 / BLM 4N (ftUS) (EPSG:4424). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
Convert EPSG:7789 to EPSG:4424 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:7789", "EPSG:4424", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:4424 — NAD83 / BLM 4N (ftUS)
projected system measured in linear units (typically metres) · Area of use: USA - 162°W to 156°W - AK, OCS
+proj=tmerc +lat_0=0 +lon_0=-159 +k=0.9996 +x_0=500000.001016002 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crsMore about EPSG:4424 →
Frequently asked questions
- How accurate is converting ITRF2014 to NAD83 / BLM 4N (ftUS)?
- 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.