I just had a college Statistics class where everyone was measuring hands (see the attached image). Everyone was getting a thrill from doing this and two of my classmates mentioned this site of yours! Makes me think that they must have an interest in hands like yourself! The tallest female in the class did indeed have the largest hands ( 18.2cm and 21.1cm) . I am sure you would love the class. As for my hands, mine are 17.2cm length and 18.8cm thumb to little finger spread, and I am 5’8″ so your chart worked almost perfectly for me.
Love your blog!