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Download WMM Software and the World Magnetic Model Coefficients for Windows

  • WMM software, executables, and WMM2015 (2015-2020) coefficients for Windows(zip file)
  • WMM Technical Report and Test Values (pdf file)
  • Maps in pdf format (45 maps of the magnetic elements and their secular variation)
The default of the new software is to interpret the user-entered height as height above mean sea level. For comparisons with the heritage C or Fortran software it is necessary to add the prefix "E" to the height input to indicate height above ellipsoid.