This fun "calculator" goes back to ancient times. The Greeks used these measurements to determine what the "ideal" male should look like and is represented over and over again in literature and art through the ages.
Simply measure your wrist circumference, which can be done by measuring just below the hand where it bends. Important: these results are just to give you a clue of what was considered to be an ideal body. Every body type is different and is in now way considered to be accurate.