How big is a king size bed UK inches?
Mia Smith
Published Mar 17, 2026
How big is a king size bed UK inches?
5 feet 6 feet 6 inches
UK Mattress Size Guide
| Imperial (ft/in) | ||
|---|---|---|
| Mattress Size | Mattress Width | Mattress Length |
| Double Mattress | 4 feet 6 inches | 6 feet 3 inches |
| King Size Mattress | 5 feet | 6 feet 6 inches |
| Super King Size Mattress | 6 feet | 6 feet 6 inches |
How many feet is a king size bed?
Comparison of Standard Bed Sizes
| Mattress Sizes | Mattress Dimensions (Inches) | Recommended Room Size (Inches) |
|---|---|---|
| Full | 54 inches by 75 inches | 10 feet by 10 feet |
| Queen | 60 inches by 80 inches | 10 feet by 10 feet |
| King | 76 inches by 80 inches | 12 feet by 12 feet |
| California King | 72 inches by 84 inches | 12 feet by 12 feet |
What size is king size mattress?
Measured in metric units, a king size bed and mattress is 150cm wide and 200cm long. Converted to imperial units, a king size bed and mattress is 5 feet wide and 6 feet 6 inches long.
Is a 6ft bed a king size?
Known as a 6ft, the super king size bed measures 6 foot wide by 6 foot 6 inches long. Or 180cm wide by 200cm long.
What are the UK bed sizes?
Width of bed
| NAME | IMPERIAL SIZE | METRIC SIZE |
|---|---|---|
| Single | 3′ x 6’3″ | 90 x 190 cm |
| Small Double | 4′ x 6’3″ | 120 x 190 cm |
| Double | 4’6″ x 6’3″ | 135 x 190 cm |
| King | 5′ x 6’6″ | 150 x 200 cm |
Is a king size bed longer than a double?
King size mattresses are wider and longer than standard double mattresses – and although they are only 6 inches wider, this can make a huge difference to how much space you have when sharing a bed.
Can a king size bed fit in a 10 by 11 room?
A King size bed will not fit comfortably into a 10 by 10 room. The standard room size for a King size bed is 12 feet wide and 12 feet long.
What size is a king size bed in feet and inches?
A standard king size bed is 5 feet wide and 6 feet 6 inches long (152 x 198 cm). Please note: from a king size bed and upwards the standard length increases by 3 inches to 6 feet 6 inches or about 2 metres.
Are all king size beds the same size?
Regular king mattresses are significantly wider than queen mattresses, clocking in at 76 inches wide, but they’re actually the same length at 80 inches. As you decide whether to go with a regular king size mattress, take note of the considerations below: Size: 76 inches x 80 inches.
Is a king size bed wider or longer?
The biggest difference between a king size bed and a California king bed is that one bed is shorter and wider, while the other is longer and narrower. A king size bed is 76 inches wide and 80 inches long.
What is the biggest bed size?
108” x 108”
What is the Biggest Bed Size? It is often said that the Alaskan King, sized at 108” x 108”, is the biggest bed, and it certainly is the longest, with a generous width to go with it. However, the widest bed out there is the Family XL, which is a full 144” wide, but only 84” long.
Is 4ft6 a double bed?
The majority of British couples still sleep in a standard double size bed which is only 135cm (4ft 6”) wide. This provides each user with just 67.5cm or about 2ft 3” of space each which is less than we give a baby in a cot! If your elbows don’t touch your partners’ then you have enough space to sleep comfortably.
