Mila Kunis (5'4″) and Ashton Kutcher (6'2″) – 10 inches:
Fans have long rooted for Mila Kunis and Ashton Kutcher since their days together on "That '70s Show." The on-screen chemistry eventually translated into a real-life relationship.
Since then, Kunis and Kutcher have become parents to two children, Wyatt and Dmitri, and they tied the knot in 2015. Kutcher's previous wife, Demi Moore, was only a few inches taller than Mila Kunis, but their story took a different turn.
