Source: EPSG:4267 — NAD27
geographic system using latitude and longitude on an ellipsoid · Area of use: North America - NAD27
+proj=longlat +datum=NAD27 +no_defs +type=crsMore about EPSG:4267 →
Convert EPSG:4267 to EPSG:27398
Online coordinate converter from NAD27 (EPSG:4267) to NGO 1948 (Oslo) / NGO zone VIII (EPSG:27398). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
Convert EPSG:4267 to EPSG:27398 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4267", "EPSG:27398", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:27398 — NGO 1948 (Oslo) / NGO zone VIII
projected system measured in linear units (typically metres) · Area of use: Norway - zone VIII
+proj=tmerc +lat_0=58 +lon_0=18.3333333333333 +k=1 +x_0=0 +y_0=0 +a=6377492.018 +rf=299.1528128 +pm=oslo +towgs84=278.3,93,474.5,7.889,0.05,-6.61,6.21 +units=m +no_defs +type=crsMore about EPSG:27398 →
Frequently asked questions
- How accurate is converting NAD27 to NGO 1948 (Oslo) / NGO zone VIII?
- 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.