What is the difference between King size and California King size beds?

A king mattress may be smaller in length compared to a California king mattress but is more spacious in the width. Whereas, a California king mattress may be smaller in width compared to a standard king mattress but is longer in the length for more feet room.

Standard king size: 76W x 80D
California king-size: 72W x 84D

Updated on: 08/19/2019