There was a download of FS Flight Calculator 1.6.0.5 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following versions: 1.6 and 1.5 are the most frequently downloaded ones by the program users.
The actual developer of the free software is Simviation. The FS Flight Calculator installer is commonly called FlightCalculator.exe, fs2002.exe, fs9.exe, FSCalcDistance.exe or SSC.exe etc. The latest version of the program can be installed on PCs running Windows XP/Vista/7/8/10/11, 32-bit. The software is included in Games. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
This Flight Sim Flight Calculator will calculate distance and arrival times for both FSX and FS2004 The program has four input components, Local Time Zone, Departing Airport, Destination Airport and the Aircraft to be used for the flight. Useful tool freeware to calculate distance and arrival times in FSX and FS2004.
You may want to check out more software, such as FS Flight Keeper, FS-FlightControl or PRE-Flight, which might be related to FS Flight Calculator.