Is a King Bed Bigger Than a Queen Bed?

The Answer Depends on the Country

In the UK, a king bed is bigger than a queen bed. A UK king is 150cm by 200cm, while beds sold here as queen size are usually 120cm by 190cm or occasionally 135cm by 190cm, so the king wins on both width and length. In the United States the comparison is different: a US king is 193cm by 203cm and a US queen is 152cm by 203cm, so the king is wider but the same length.

The confusion comes from the fact that queen is not a standard British size. It is an imported term applied inconsistently by retailers, which is why two beds both labelled queen can differ by 15cm in width. In the UK, the reliable sizes are single, small double, double, king and super king.

The UK Sizes Set Out Clearly

A UK single is 90cm by 190cm. A small double, sometimes labelled queen, is 120cm by 190cm. A standard double is 135cm by 190cm. A UK king is 150cm by 200cm. A super king is 180cm by 200cm.

Notice that the length changes only once, at king size. Singles, small doubles and doubles are all 190cm long, while king and super king are 200cm. So the move from double to king gains 15cm of width and 10cm of length, whereas the move from king to super king gains 30cm of width and no extra length.

Per sleeper, the numbers are stark. Two people in a double have around 67cm each. In a king they have 75cm each. In a super king they have 90cm each, which is the width of a full single bed per person.

Why the Queen Label Persists Here

British bed sizing evolved independently, and the crown names came from marketing rather than any standards body. King entered common UK use and stuck. Queen never did, but it arrives through imported furniture, international websites and hotel terminology, so shoppers encounter it regularly.

The practical risk is bedding. If a retailer sells you a queen frame at 120cm and you buy queen bedding from an overseas source cut for 152cm, nothing fits. Always work from the centimetre measurements printed in the specification rather than the size name on the listing.

The same care applies to mattresses. A frame built to a non standard imported size may not accept a UK mattress cleanly, leaving gaps at the sides. Every frame in our modern king size beds UK sale range is built to the UK 150cm by 200cm standard, so a UK king mattress fits without adjustment.

Choosing Between the Sizes in a Real Room

Once you know the numbers, the decision is about your room and your sleeping habits. A king size frame usually finishes between 160cm and 175cm wide once the surround is counted, and up to 215cm long with a floor standing headboard.

Allow 60cm of clear floor on each side you walk along and 75cm where a wardrobe door opens, and a king needs a room around 2.9m to 3m wide to feel comfortable. A double in the same room leaves a noticeably easier walkway, which is why plenty of British main bedrooms are better served by a double even when a king would technically fit.

Sleeping habits push the other way. If one person is a restless sleeper, if either of you is over six feet, or if children and pets arrive in the night, the extra width and length of a king changes the quality of sleep more than almost any other bedroom decision. Our modern double beds UK sale range is the comparison point if you are weighing the two.

Bedding Differences That Catch People Out

A UK king fitted sheet is cut for 150cm by 200cm plus a depth pocket. A UK king duvet is roughly 225cm by 220cm, far wider than the mattress, because the extra width is what makes it drape rather than sit flat. A double duvet on a king mattress is the single most common cause of duvet tug of war between two sleepers.

Pillows behave differently across the sizes too. Two standard UK pillows at 74cm wide total 148cm, which sits almost exactly across a 150cm king mattress and is why king beds look naturally balanced with two pillows. On a 135cm double, the same two pillows overhang slightly, which is normal but worth knowing if you like a precise finish.

Getting the Bed Into the Room

A larger bed brings a larger access problem. A king mattress cannot be folded, so it needs to travel the full route up the stairs, round the landing turn and through the bedroom door in one piece. Rolled and vacuum packed mattresses simplify this considerably, and flat packed frames avoid the issue for the frame itself.

The headboard is usually the awkward component, since it arrives as one solid piece on many upholstered designs. Measure the narrowest point on the route, not just the doorway, and check the diagonal clearance on any tight stair turn.

It is also worth considering weight. A king ottoman base with a lifting mechanism is heavy, and getting it upstairs is a two person job at minimum. Plan the assembly location before the delivery rather than after.

What Else Changes When You Size Up

A bigger bed reduces the floor available for everything else, so storage usually has to move into the bed itself. Ottoman bases give access to the full footprint beneath the mattress and are the most efficient hidden storage in a bedroom. Divans with drawers offer quicker access to a smaller volume.

Furniture around the bed needs to shrink accordingly. Slim bedside cabinets keep walkways usable, and there are narrow designs across our bedside cabinets UK sale range that suit a room where a king already takes most of the width. Sliding door wardrobes are the other useful adjustment, since they need no clearance in front of the doors. You can see the full picture across the bedroom ranges at Furniture in Fashion UK.

What the Extra Width Actually Feels Like

Numbers on a page do not convey much, so it helps to translate them. A UK double gives each person in a couple around 67cm of width, which is narrower than a standard single bed. A UK king gives each person 75cm, and a super king gives 90cm. That single figure explains most of what people notice when they move up a size.

The practical effect is on disturbance rather than space in the abstract. If one of you turns frequently or gets up early, the extra centimetres between you reduce how much the other person feels it. Couples who share a double and sleep poorly often find that width, not mattress firmness, was the real problem all along.

Room Proportion, Not Just Room Size

A king bed can fit a room and still look wrong in it. What matters alongside the measurements is proportion, meaning how the bed sits relative to the wall it is against and the furniture around it. A king bed on a narrow wall with no space either side reads as cramped even when the floor space technically works.

Aim to have the bed on the longest uninterrupted wall, with matching bedside furniture on both sides if the width allows. Symmetry does a great deal of the work here, and a room with balanced furniture either side of the bed looks calmer than one where the bed is pushed off centre to make something else fit.

Buying Bedding for a Larger Bed

Sizing up means replacing more than the mattress. Fitted sheets, duvets, duvet covers and often the mattress protector all need to change, and larger sizes cost more per item. Budget for at least two full sets so there is always one on the bed while the other is washed. It is a small point, but it is the cost people forget when comparing two frame prices side by side.

Access is the other consideration that decides this for some homes. A king mattress cannot be folded, and a 150cm width has to clear the turn at the top of a staircase in one piece. In older terraced and cottage properties this is often the real limit rather than the bedroom itself, and it is worth measuring the narrowest point of the route before choosing between the two sizes.

Frequently Asked Questions

Is a queen bed a real UK size?

Not officially. Beds labelled queen in the UK are usually 120cm by 190cm small doubles, sometimes 135cm doubles. The standard UK sizes are single, small double, double, king and super king.

How much bigger is a UK king than a double?

A king is 15cm wider and 10cm longer, at 150cm by 200cm against 135cm by 190cm.

Is a US king the same as a UK king?

No. A US king is 193cm by 203cm, considerably wider and slightly longer than the UK king at 150cm by 200cm.

Will queen size bedding fit a UK king bed?

Almost certainly not. Check the centimetre measurements on the packaging and buy UK king bedding cut for a 150cm by 200cm mattress.

Which size should I choose for a main bedroom?

A king if the room is around 2.9m wide or more and you want space on both sides. A double if the room is tighter or has to hold other furniture.