The dimensions of a King size and a California King Size bed - also known as Cal King - are different. A standard (Eastern) King size bed is 76" wide and 80" long; while a California King size bed is 72" wide and 84" long.
California King Size
183 cm (72")
193 cm (76")
California King Size beds may be found either in the master bedroom or for exceptionally tall kids.
King size beds are usually found in the master bedroom.
California King Size beds cost roughly the same as regular king size beds.
Since a king size bed is larger, it is more expensive and mattresses in this size may also cost more compared to queen beds.
213 cm (84")
203 cm (80")
Width per person
The width available on a king size bed would be 36 inches per person if two people are sharing it.
The width available on a king size bed would be 38 inches per person if two people are sharing it.
A California King size bed is larger than a queen size bed. It is longer but narrower compared to a regular King Size bed.
A king size bed is fairly large compared to the queen or full size bed.