Hello,
ASG Calc is an AirSoft utility software, and it's now in english !
You can convert energy/velocity (joules, fps, km/h, m/s).
You can calculate the time for charge batteries and there is an integrated timer with an alarm !
And some other stuffs...
Click
here to go to my site and to download ASG Calc v2.7
Cordially,
Logan_32