Popsugar Celebrity The Royals How Tall Is Kate Middleton? If Prince William Is 6'3", Just How Tall Is the Duchess of Cambridge? 21 September 2018 by Lauren Turner View On One Page Photo 12 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 A look at how Kate stands up next to many other members of the royal family. Previous Next Start Slideshow The RoyalsThe British RoyalsKate Middleton