NOTAM ( GPS ) decoder

Are you a student pilot learning to fly and not sure on all those NOTAM abbreviations? Are you a private or commercial pilot and unsure on those rarely used abbreviations? Does the NOTAM have GPS coordinates in it and you'd like to know where this NOTAM is referring to? Then can help!

This NOTAM decoder will facilitate your flightplanning. It will visualize the GPS locations described in the NOTAM and translate many of the abbreviations used. This tool is experimental and will not be able to parse 100 % of the type of GPS notations and abbreviations in NOTAMs. Please always use additional tools for flight planning. For current known limitations see the bottom of the page.

Known limitations:

  • Multiple areas: the decoder cannot handle multiple areas described in a NOTAM. Please enter one area or point at a time. We are working hard on a better decoder.
  • Western latitudes that only use 2 digits instead of 3 digits, will not be decoded correctly. E.g. 99 W should be 099 W . We are looking into this.
  • If the Long/Lat indicator (N/S/W/E) is in front of the digits instead of fafter the digits, it will not recognize the coordinates. We are looking into this.
  • Sponsored Links


    NOTAM decoder is developed by Ralf van Dooren, a pilot flying in Europe. He writes (in Dutch) about his flying adventures and all-things-general-aviation at In his spare-time, he sells the fastest cargo-bike on the planet, the Bullitt.

    If you like this tool, please consider making a donation. If you have any questions, remarks or suggestions on this tool, contact me via email or via Twiter: @ralfvd


  • NOTAM format