Source: EPSG:8987 — SIRGAS-CON SIR17P01
geographic system using latitude and longitude on an ellipsoid · Area of use: Latin America - Central America and South America
+proj=longlat +ellps=GRS80 +no_defs +type=crsMore about EPSG:8987 →
Convert EPSG:8987 to EPSG:4674
Online coordinate converter from SIRGAS-CON SIR17P01 (EPSG:8987) to SIRGAS 2000 (EPSG:4674). 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 SIRGAS 2000 to SIRGAS-CON SIR17P01 — the parameters are invertible.
Convert EPSG:8987 to EPSG:4674 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:8987", "EPSG:4674", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:4674 — SIRGAS 2000
geographic system using latitude and longitude on an ellipsoid · Area of use: Latin America - SIRGAS 2000 by country
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4674 →
Frequently asked questions
- How accurate is converting SIRGAS-CON SIR17P01 to SIRGAS 2000?
- 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.