I would like to discover an universal application that can convert between all kind of units such as time units, file-size and internet transfer-rate units (informatic units), measurement units, powering units, etc.
A desktop app with Graphical user interface (not a Windows Store app).
With informatic units conversion available
( required: from bit to megabit, byte to terabyte )
With Spanish translation (to understand the unit namings).
Not too scientific/advanced/complicated.
( user-friendly, for "dumbs", with easy conversion options. )