NAD83(CSRS)v2 to NAD83(CSRS)v3 (1)
EPSG:9120±0.1 mBest accuracy- Method:
- NTv2
- Area of use:
- Canada - British Columbia - CRD
- Scope:
- Geodesy.
Grid file: CRD98_00.GSB
Convert NAD83(CSRS)v2 to NAD83(CSRS)v3
Convert coordinates from NAD83(CSRS)v2 (EPSG:8237) to NAD83(CSRS)v3 (EPSG:8240) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformations from NAD83(CSRS)v2 to NAD83(CSRS)v3
The EPSG Geodetic Parameter Dataset defines 2 transformations between NAD83(CSRS)v2 (EPSG:8237) and NAD83(CSRS)v3 (EPSG:8240). Each applies to a specific area — pick the one whose area of use covers your data.
NAD83(CSRS)v2 to NAD83(CSRS)v3 (2)
EPSG:9121±0.1 m- Method:
- NTv2
- Area of use:
- Canada - British Columbia - north Vancouver Is
- Scope:
- Geodesy.
Grid file: NVI98_05.GSB
Convert EPSG:8237 to EPSG:8240 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:8237", "EPSG:8240", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Source: EPSG:8237 — NAD83(CSRS)v2
geographic system using latitude and longitude on an ellipsoid · Area of use: Canada
+proj=longlat +ellps=GRS80 +no_defs +type=crsMore about EPSG:8237 →
Target: EPSG:8240 — NAD83(CSRS)v3
geographic system using latitude and longitude on an ellipsoid · Area of use: Canada
+proj=longlat +ellps=GRS80 +no_defs +type=crsMore about EPSG:8240 →
Frequently asked questions
- How accurate is converting NAD83(CSRS)v2 to NAD83(CSRS)v3?
- The most accurate official EPSG transformation between these systems is accurate to about ±0.1 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.