Bed size chart
Bed sizes and mattress sizes for the US, UK and France · inches and cm
In the US, a Queen mattress is 60 × 80 in (152.4 × 203.2 cm), a King is 76 × 80 in and a California King is 72 × 84 in. In the UK, beds are labelled in centimetres: a Double is 135 × 190 cm, a King 150 × 200 cm and a Super King 180 × 200 cm. The same name can mean a different bed size in each country, so every mattress size below is given in inches and centimetres, with the source that publishes it.
Compare any two sizes
Pick two sizes from any market. Both are drawn to the same scale from the chart's figures.
- US Queen: 60 in × 80 in (solid outline)
- UK King: 59.1 in × 78.7 in (dashed outline)
- Width difference (second vs first)−0.9 in
- Length difference (second vs first)−1.3 in
- Surface area33.3 sq ft vs 32.3 sq ft (−3.1%)
Next step
- For a US Queen: California Design Den 400 Thread Count Cotton Sateen Sheet Set, Queen (fits mattresses 8 to 16 in deep) and Coop Ultra-Tech Waterproof Mattress Protector, Queen (Tom's Guide's best overall after spill and wash tests; fits mattresses up to 18 in deep).
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US mattress sizes
| Size | Inches | Centimetres |
|---|---|---|
| Twin | 39 × 75 inor 38 × 75 in | 99.1 × 190.5 cmor 96.5 × 190.5 cm |
| Twin XL | 39 × 80 inor 38 × 80 in | 99.1 × 203.2 cmor 96.5 × 203.2 cm |
| Full | 54 × 75 inor 54 × 74 in | 137.2 × 190.5 cmor 137.2 × 188 cm |
| Queen | 60 × 80 in | 152.4 × 203.2 cm |
| King | 76 × 80 in | 193 × 203.2 cm |
| California King | 72 × 84 in | 182.9 × 213.4 cm |
First figure: Target mattress size chart. * Second figure: Sleep Foundation, where it differs. Both checked 2026-09-24.
UK mattress sizes
| Size | Centimetres | Inches |
|---|---|---|
| Small Single2ft 6in × 6ft 3in | 75 × 190 cm | 29.5 × 74.8 in |
| Single3ft × 6ft 3in | 90 × 190 cm | 35.4 × 74.8 in |
| Euro Single3ft × 6ft 6in | 90 × 200 cm | 35.4 × 78.7 in |
| Small Double4ft × 6ft 3in | 120 × 190 cm | 47.2 × 74.8 in |
| Double4ft 6in × 6ft 3in | 135 × 190 cm | 53.1 × 74.8 in |
| Euro Double4ft 7in × 6ft 6in | 140 × 200 cm | 55.1 × 78.7 in |
| King5ft × 6ft 6in | 150 × 200 cm | 59.1 × 78.7 in |
| Euro King5ft 3in × 6ft 6in | 160 × 200 cm | 63 × 78.7 in |
| Super King6ft × 6ft 6in | 180 × 200 cm | 70.9 × 78.7 in |
| Emperor6ft 6in × 6ft 6in | 200 × 200 cm | 78.7 × 78.7 in |
Sizes in centimetres, feet and inches: Which? UK mattress size guide, checked 2026-09-24. The National Bed Federation lists the same figures for the six standard sizes. The feet-and-inches names are approximate, not exact conversions: Which? gives them as “approximately”, and a 135 cm Double is 53.1 in wide, not the 54 in that 4ft 6in implies. Inches are our conversion (1 in = 2.54 cm).
What we found
US sources do not agree on three sizes
Target lists Twin and Twin XL as 39 in wide; Sleep Foundation's twin guide lists 38 in. For Full, the same Sleep Foundation guide gives 54 × 74 in, while its own double-bed guide and Target both give 54 × 75 in. We show both figures instead of averaging them into a number nobody publishes. Measure the mattress you are actually buying.
Read on 2026-09-24: Target chart, Sleep Foundation twin guide, Sleep Foundation double guide.
The size data on this page is free to reuse under CC BY 4.0, with a link to bedsizechart.com.
Queen, King and Double are not one size worldwide
The same name is used for different measurements in different markets. Each chart below is drawn from the dataset behind this page; we compare sizes by measurement, never by name.
French mattress sizes
In France, beds are sold in centimetres. These are the standard sizes IKEA France lists; they are not an EU-wide standard. More on the French bed sizes page.
| Size | Centimetres | Inches |
|---|---|---|
| 1 placeSingle 90 × 190 | 90 × 190 cm | 35.4 × 74.8 in |
| 1 placeSingle 90 × 200 | 90 × 200 cm | 35.4 × 78.7 in |
| 2 placesDouble 140 × 190 | 140 × 190 cm | 55.1 × 74.8 in |
| 2 placesDouble 140 × 200 | 140 × 200 cm | 55.1 × 78.7 in |
| queen sizeQueen 160 × 200 | 160 × 200 cm | 63 × 78.7 in |
| king sizeKing 180 × 200 | 180 × 200 cm | 70.9 × 78.7 in |
Source: IKEA France mattress size guide (in French), checked 2026-09-24.
Before you buy: three measurements a size name does not give you
- The mattress itself.
Use the seller's width, length and depth for that exact product. Even two major US references differ by an inch on Twin width.
- The frame's outer footprint.
A frame is larger than its mattress. An IKEA MALM Queen frame takes up 66⅛ × 83⅛ in of floor space for the 59⅞ × 79½ in mattress IKEA says it holds. See bed frame dimensions.
- The mattress depth, for fitted sheets.
A fitted sheet has to match the mattress's depth, not just its width and length. See fitted sheet pocket depth.
Start with your question
- Buying for a college dorm? Twin XL dimensions shows the length retailers sell and what Duke, UCLA and NDSU publish for their dorm mattresses.
- Need something bigger than a King? Oversized bed sizes sets the Alaskan, Wyoming and Texas kings side by side with the floor space each takes.
- Choosing between two sizes? Compare Queen vs Full, King vs California King or Twin vs Twin XL, each drawn to scale.
- Shopping for bedding? Sheet and duvet sizes lists the size that goes with each mattress, and duvet vs comforter works out the drop per side on six US mattresses.
- Fitting a camper or van? RV mattress sizes covers the RV Short Queen, RV Full and RV King, and where publishers disagree on them.
- Moving between countries? UK vs US bed sizes and UK bed sizes match sizes by measurement, not by name.
Sources
- Target mattress size chart
- Sleep Foundation twin size guide
- Sleep Foundation double bed guide
- Sleep Foundation single vs twin
- IKEA US MALM bed frame (Queen)
- Which? UK mattress size guide
- IKEA France size guide
Sources are grouped by the market they are written for. Each figure was checked against its source on the date shown.