Spatial Reference

Converts to and from projection names and EPSG format to provide unambiguous descriptions.

The EPSG Geodetic Parameter Dataset, abbreviated to the EPSG Dataset, is a repository of parameters required to:

• define a coordinate reference system (CRS), which ensures that coordinates describe positions unambiguously.
• define transformations and conversions that allow coordinates to be changed from one CRS to another CRS. Transformations and conversions are collectively called coordinate operations.

For example (see table for SE US):

UTM 17N, NAD83 Meters is assigned the EPSG code: 26917

In addition to providing EPSG codes, the website can provide the coordinate description as: PRJ, HTL, Python, XML, and other formats.

The EPSG Dataset is maintained by the OGP Surveying and Positioning Committee's Geodetic Subcommittee. It conforms to ISO 19111 – Spatial referencing by coordinates.

OGP is the International Association of Oil and Gas Producers.

Spatial Reference