King vs Queen Size Bed: What’s the Difference? (UK & US Sizes Explained)

Shopping for a bigger bed? The king vs queen question sounds simple — until you realise the answer changes depending on which side of the Atlantic you are on. In the US, a queen and a king are two different standard sizes. In the UK, there is officially no such thing as a queen bed at all. Here is the full breakdown, with exact dimensions in inches and centimetres, so you can buy the right bed — and the right bedding — first time.

The Quick Answer

In the US, a queen bed is 60 × 80 inches (152 × 203 cm) and a king bed is 76 × 80 inches (193 × 203 cm). They are the same length; the king is simply 16 inches (about 41 cm) wider. In the UK, the nearest equivalent to a US queen is a UK king, at 150 × 200 cm (5’0″ × 6’6″) — almost exactly the same size.

King Size Bed Dimensions

A US king is the widest standard bed you can buy. At 76 inches wide, it gives each partner 38 inches of personal space — the same width as a twin bed each. There is also the California king, which trades width for length: 72 × 84 inches, designed for taller sleepers.

Queen Size Bed Dimensions — and the UK Twist

Here is where most people get confused. “Queen” is an American size name. UK retailers do not sell a standard queen bed — the UK ladder runs single (90 × 190 cm), small double (120 × 190 cm), double (135 × 190 cm), king (150 × 200 cm) and super king (180 × 200 cm).

So if you see a “queen size bed” advertised in the UK, it is almost always one of two things: a US import measured at 60 × 80 inches, or a European queen at 160 × 200 cm. Both are close to — but not exactly — a UK king. Always check the centimetres before you buy.

King vs Queen: The Key Differences

Width. This is the whole story. A US king is 16 inches wider than a queen, which works out to 8 extra inches of elbow room per person. Couples who disturb each other at night feel this difference immediately.

Length. Identical in the US (80 inches), so height is not a reason to choose one over the other — unless you are over about 6’2″, in which case the longer California king (84 inches) is the better upgrade.

Room size. A queen fits comfortably in a bedroom of around 10 × 10 feet. A king really needs a room of at least 12 × 12 feet so you keep roughly 24–30 inches of walking space around the bed.

Price. King mattresses, frames and bedding typically cost 10–25% more than queen equivalents, and king bedding is bulkier to wash and store.

Will US Queen Bedding Fit a UK King Bed?

Nearly — but not perfectly. A US queen mattress (152 × 203 cm) is 2 cm wider and 3 cm longer than a UK king (150 × 200 cm), so fitted sheets usually stretch on, though the fit is snug and mattress depth matters more than the label. Duvets differ more: a UK king duvet is 225 × 220 cm, while US queen comforters are typically around 229 × 229 cm. The golden rule when buying bedding internationally is to shop by centimetres, never by size name.

Which One Should You Choose?

Choose a queen (or UK king) if your bedroom is modest, you sleep alone or as a couple who like to stay close, and you want cheaper, easier-to-find bedding. Choose a king (or UK super king) if you have the floor space, share with a restless partner, children or pets, or simply value maximum personal space. For most couples in an average UK bedroom, the UK king at 150 × 200 cm is the sweet spot — it is, to all intents and purposes, the queen by another name.

Frequently Asked Questions

Is a king bed bigger than a queen?

Yes. In the US a king (76 × 80 in) is 16 inches wider than a queen (60 × 80 in), with about 27% more sleeping surface. The length is the same.

What is a queen size bed in the UK?

There is no official UK queen size. The closest UK equivalent is a king at 150 × 200 cm, which is within a few centimetres of the US queen (152 × 203 cm).

Is a UK king the same as a US queen?

Almost. A UK king is 150 × 200 cm and a US queen is 152 × 203 cm — close enough that bedding often fits both, but always check the exact measurements and your mattress depth.

What is bigger, a UK super king or a US king?

A US king is wider (193 cm vs 180 cm), but a UK super king is the largest standard size sold in Britain and suits most UK bedrooms better.

The Bottom Line

The difference between a king size and queen size bed comes down to width — and to geography. In America, king beats queen by 16 inches of width. In Britain, the queen does not officially exist, and the UK king quietly does the same job. Measure your room, check the centimetres, and ignore the label: that is how you end up with the right bed.

Related reading: our related guide.