What are the measurements of a king sized mattress?

Answer by  technogeek (6640)

A king mattress is standard size 76 inches by 80 inches or 6'4" by 6'8". Measure your room, and if it is larger than 76 by 80, then the mattress will fit. But be sure to measure your door to make sure that you can get it into your room.

Answer by  joantheresa (1421)

The measurements for a king size mattress is 76" wide by 80" long. A California king mattress is 72" wide by 84" long.