US King bed size
76 × 80 inches
193.0 × 203.2 cm · 1930 × 2032 mm · 3.92 m² · North America standard
About the King
Also called an Eastern King. Two Twin XL mattresses side by side are exactly a King, which is why split-King adjustable bases exist. At 193 cm wide it is wider than a UK Super King, the largest bed sold in Britain — the naming across the Atlantic does not line up at any size.
The numbers
| Width | 76 in · 193.0 cm |
| Length | 80 in · 203.2 cm |
| Area | 3.92 m² |
| Width per person, shared | 38 in · 96.5 cm |
| Minimum room size | 313.0 × 263.2 cm — 60 cm clear each side and at the foot |
| Standard | North America |
The same name, a different bed
A United Kingdom King is 150 × 200 cm — 43 cm narrower and 3 cm shorter than this one. Bedding is not interchangeable between them.
Closest sizes
| Bed | Region | Size | vs King |
|---|---|---|---|
| California King | North America | 182.9 × 213.4 cm | 10 cm narrower, 10 cm longer |
| Emperor | United Kingdom | 200 × 200 cm | 7 cm wider, 3 cm shorter |
| Super King | United Kingdom | 180 × 200 cm | 13 cm narrower, 3 cm shorter |
| EU King | Continental Europe | 180 × 200 cm | 13 cm narrower, 3 cm shorter |
| EU Queen | Continental Europe | 160 × 200 cm | 33 cm narrower, 3 cm shorter |
| Queen | North America | 152.4 × 203.2 cm | 41 cm narrower |
Frequently asked questions
What are the dimensions of a King bed?
76 × 80 inches, or 193.0 × 203.2 cm. North America standard.
What size room does a King bed need?
At least 313.0 × 263.2 cm to leave 60 cm of walking space on both sides and at the foot. Less than that and the bed fits but the room does not work.
Is a King the same size everywhere?
No. The United Kingdom King is 150 × 200 cm, against 193.0 × 203.2 cm here. The name is the same and the bed is not, which is why bedding bought abroad so often does not fit.
What is the area of a King bed?
3.92 square metres.