What size is a king size fitted sheet? Rebecca L February 15, 2020 15:46 Updated Follow Our king size fitted sheets measure 150cm x 200cm. Shop king size fitted sheets. Related articles What is a deep fitted sheet? What size is a Superking fitted sheet? What size is a Superking duvet cover? What size is a double fitted sheet? Do you have any discount codes running? Comments 0 comments Please sign in to leave a comment.