MakeHuman software supports export to all kind of 3D exchange formats, including Autodesk Kaydara format (.fbx). So you can easily convert .mhx files to .fbx files with the original program. it may also be possible to import .mhx files to Blender and perform the conversion from there.
Convert MakeHuman exchange format to Autodesk Kaydara 3D data exchange format.
We have found one software suitable in our database for this conversion.
Multiplatform software - convert mhx to fbx on any platform
MakeHuman is a free, open source software for making realistic 3D characters for illustrations, animations or games.
Convert from mhx file
to fbx file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.