From July 28th, 2014 to March 13th, 2018, 50% user give 5-star rating, 50% user give 2-star rating. for KingConverter chrome extension.
You have to manually enter in most any conversion that you would want to do before this extension offers very much convenience.
This changed my life. It's the solution to world hunger. For peace. No need for kings when you have KingConverter. 11/10.