Apple Logic Pro /LogicExpress Discussion

When you quantize a note in Logic,  you  can choose quarter note , eighth note , etc.etc.
When you quantize the END of a note,  instead of the sensible quarter note eighth note 
thing, you are faced with the 4-number  beat, .....ticks box.  Can someone tell me what 4 
numbers in that box would equal a quarter note,  an eight note,  even a whole note would 
be handy.