Download WMM Software and WMM Coefficients for Windows
- Windows C source code and latest WMM2025 (zip file)
- WMM2025 technical report
- WMM2025 maps with blackout zone
- WMM2025 maps without blackout zone
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.