EPSG Coordinate Converter

🌍What is a Coordinate Reference System?

A Coordinate Reference System (CRS) defines how coordinates relate to real locations on Earth. Different systems are optimized for different purposes:

Geographic CRS: Use latitude/longitude (e.g., WGS 84)
Projected CRS: Use meters/feet on a flat map (e.g., Web Mercator, UTM)
Local CRS: Optimized for specific regions or countries

📍Popular EPSG Systems

EPSG:4326 - WGS 84

Global standard for GPS. Uses degrees of latitude and longitude.

Example: 31.2357°, 30.0444° (Cairo)

EPSG:3857 - Web Mercator

Used by Google Maps, Bing, OpenStreetMap. Coordinates in meters.

Example: 3476896.12, 3526987.45

FAQ

What is EPSG?

EPSG (European Petroleum Survey Group) codes are unique identifiers for coordinate reference systems (CRS). They standardize how geographic locations are represented.

What is EPSG:4326?

EPSG:4326 is WGS 84, the coordinate system used by GPS. It uses latitude and longitude in decimal degrees.

What is EPSG:3857?

EPSG:3857 is Web Mercator, used by Google Maps, OpenStreetMap, and most web mapping services. Coordinates are in meters.

What are UTM zones?

UTM (Universal Transverse Mercator) divides the world into zones. Each zone has its own EPSG code (e.g., EPSG:32633 for Zone 33N).

How accurate is this converter?

This tool provides accurate conversions for common transformations like WGS84 to Web Mercator. For specialized conversions, consider using professional GIS software.

Can I use this for GPS coordinates?

Yes! GPS uses EPSG:4326 (WGS 84). You can convert GPS coordinates to other systems like Web Mercator or UTM.