Science Facts - Frequency Conversion 
This calculator converts between the various ways to express
the frequency of light.
To say that having 4 different methods to describe basically the same property is confusing would be a tremendous understatement. 
The purpose of this page is to simplify this. 
To Use - just type a value into any cell and the others will be automatically computed
(there is a fair amount of round-off error)
 
  Javascript Calculator