1. Search the Proj4js format on Spatial Reference:
Ex: European Datum 1950

2. Come-back and add the new reference system definition in TWCC:

Add!

3. You use this system frequently?
Contact us and we will add it to TWCC permanently!

Please fill out the form below.

What is TWCC?

TWCC, "The World Coordinate Converter", is a tool to convert geodetic coordinates in a wide range of reference systems.

Several coordinate conversion tools already exist, however, here is what makes the strength of TWCC:

• This tool is intuitive and easy to use.
• The possibility to add user-defined systems and the use of an interactive map make it flexible.
• No download or special installation is required, you just need to have an Internet connection.
• TWCC is compatible with most environments (Mac, Linux, Windows...). Tested for:
  • MS Internet Explorer 6, 7 and 8
  • Mozilla FireFox 3
  • Safari 4 and 5
  • Opera 10
  • Google Chrome 5
  • Chromium 4 to 6
• TWCC is completely FREE and licensed under CC BY-NC:

TWCC was created by Clément Ronzon following research and development carried out for GrottoCenter.org.

Special thanks to: Leszek Pawlowicz, Lê Viết Thanh.

For any questions or suggestions please contact us.

You can donate to support this initiative.