[mb7733]

B to F is a fifth; that interval is called a diminished fifth (one semitone less than a perfect fifth like B to F#).

[333c]

Yes, this is true, but it's not how the circle of fifths works (which is what the comment I was responding to seemed to be alluding to).

[kaoD]

He's right though, that's not what I was trying to write (not a 3:2 ratio).