If you find yourself needing to deal with a lot of California king sized mattresses, print out this chart! Mattress ThicknessĮven though this bed may be extra big in a lot of other ways, a California king mattress is generally about the same thickness as other mattresses – about 8-13 inches deep, or about 20-33 cm deep. In meters, a California king mattress is 1.83 m x 2.13 m – a surface area of 3.9 sq. In centimeters, a California king mattress is 183 cm x 213 cm – a surface area of about 39,019 sq. In feet, a California king mattress is 6 ft x 7 ft – a surface area of 42 square feet. In inches, a California king mattress is 72″ x 84″ – a surface area of 6,048 square inches. California King Mattress Dimensions Imperial Measurements They’re just different! It all comes down to what fits in your bedroom, and what you fit on the best. If you see a website saying that the Cali king is the “biggest of the bunch,” you know they’ve not done their research. The Cali king, also called the western king, is in truth just the counterpart of the regular king, which is also known as the eastern king. All in all, the surface area of the Cali king is actually slightly less than that of the king. It’s 84 inches long, which is four inches longer than the king mattress! However, it’s also 72 inches wide, which is four inches shorter than the king mattress. The California king mattress is a tricky mattress upgrade.

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