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 10 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 10 Louis Tomlinson is just one inch shorter than Kate, but her heels give her even more height. Previous Next Start Slideshow The RoyalsThe British RoyalsKate Middleton