What Dimensions Is a King Bed?

In the UK a king bed measures 150cm x 200cm, or 5ft x 6ft 6in, but the word king is a regional label rather than a fixed measurement. A US king runs around 193cm wide and a European king 160cm, which is why international bedding so often refuses to fit. This guide compares king dimensions across the UK, Europe, the US and Australia, then explains the difference between mattress size and frame footprint, including the height measurement most people overlook. We cover clearance planning for real British bedrooms with chimney breasts and radiators, how to decide between a king and a super king, the central support a wider mattress needs, under bed storage capacity, and how to dress a larger bed in proportion....