convert feet and inch to cm in javascript OR jquery

 var minheight = toInches(ui.values[0]);
           minheight = minheight.split("'");
           //convert feet to cm
           var feetcm = minheight[0]/0.032808;
           var inchcm = minheight[1].substr(0, minheight[1].length - 1);
           //convert inch to cm
           var inchcm = inchcm/0.39370;
           var minheightcm = (parseFloat(feetcm)+parseFloat(inchcm)).toFixed(2);