I wouldn't go by the chart. Go to your local pro and ask him to check this for you. He'l measure you and use a lie board and he'l be able to give you an accurate specification for your irons. He can also adjust your current irons accordingly if you want.

What website did you use? try www.golfsmith.com and tell me your results because I used the it the other day and didn't know how accurate it would be. So gonna get my irons spec checked by the club pro over winter.