Okrand says: My math may be wrong, but I think wa' 'uj is about 13 ½ inches. Three inches is around 0.2 'uj or pagh vI' cha' 'uj or vI' cha' 'uj or vagh loch wa' 'uj. Nine inches would be roughly vagh loch wej 'uj. And so on. (All of these conversions are very approximate.) Unfortunately, there’s no such thing as a 'ujHom. The mysteries of Klingon never end.