I agree with gordonrussell76's assessment and those made earlier - focal length measures exactly that and does not change regardless of what you would "want" it to say. If you want to know what its equivalent on 35mm sensors/film would be, multiply by 1.5x. If you want to know angle of view, the specifications sheet on Fujifilm's official product site states what it is. In fact, they also include the 35mm equivalent focal length.
See, for example, here for the 16mm f/1.4 lens. Clearly labeled are the facts that a lens with a 16mm focal length on Fujifilm's APS-C ("crop") sensor is equivalent to a lens with a 24mm focal length on a 35mm sensor. They also state that the angle of view is 83.2 degrees (24mm lens on 35mm sensor has an angle of view of 84.1 degrees).
The information is all there for anyone willing to look for it. I can see how the focal length issue might be confusing but it is a standard and an measurement. If you're still thinking in 35mm terms, just multiply Fuji lenses' focal length by two-thirds. In the case of the thread starter, if they want a lens with the field of view of a 27mm lens on their 35mm camera, multiply 27 by two (54) and divide by three (18) - so you want Fujifilm's 18mm lens.
