Download WMM Software and the World Magnetic Model Coefficients for Windows
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.
- WMM software, executables, and WMM2015 (2015-2020) coefficients for Windows(zip file)
- WMM Technical Report and Test Values (pdf
- Maps in pdf format (45 maps of the magnetic elements and their secular variation)