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Mattress sizes chart

Check the mattress sizes of your beds before you buy new mattresses and avoid problems later: Use our mattress size chart to check which size you need for your bed.

International standards for mattress sizes

There is no internationally accepted standard for the size of bed mattresses which can often lead to confusion. The terms Full, Single, Twin, Queen or King bed and their many variations have different interpretations in different countries and even within the same country so sizes cannot just be assumed from any particular mattress name. For example, a US Queen bed mattress is 60” x 80” but a Singapore Queen is 150cm x 190cm (which converts to 59.1” x 74.8”) so don’t expect that your US Queen mattress will fit a Singapore Queen bed! Similarly, a US Queen mattress is 2” longer than a UK Queen.

The understanding of the sizes of mattresses further complicated by the use of imperial and metric measurement systems in different countries. A 60” wide mattress converts to 152.4cm but a manufacturer in a metric system country is hardly likely to manufacture a mattress with this width. He is more likely to make it 150cm wide – one inch narrower. Check the size of your bed before you buy a new mattress and avoid any problems!

Furthermore, there may also be small differences in sizes between manufacturers within the same country.

So which countries use the imperial and metric systems for measuring size?

The US is the principal country still using the full imperial measurement system. They are joined possibly by Liberia, Sierra Leone and Burma.

The UK which has formally adopted the metric system nevertheless continues to use imperial measurements in many sectors.

Canada has partially converted to the metric system and Hong Kong is a mix of both systems.

There is plenty of information available where sizes of mattresses are converted arithmetically from one measurement system to another but our mattresses sizes chart is somewhat different. We show the actual mattress size dimensions based on a country’s measurement system and we use the terms Full, Single, Twin, Queen, King etc but they are country specific not international specific.

If you want to quickly convert inches to cm and vice versa, try this inches to cm converter.

Use our chart to get your mattress sizes and remember, before you buy a new one, always measure the bed frame first!

Countries: imperial measurement systems

USA

Imperial (inches)

Width Length

Standard Bunk

39

75

Narrow Bunk

36

75

Twin Bed Size / Single

39

75

Twin Extra Long

39

80

Full Bed Size/ Double

54

75

Queen

60

80

California Queen

60

84

Expanded Queen

66

80

Super Queen

66

80

King

76

80

California King

72

84

Grand King

80

98

UK

Single

36

75

Bunk

36

75

Double

54

75

King

60

78

Super King

72

78

CANADA

Crib

28

51

Twin/Single

38

75

Twin/Single Extra Long XL

38

80

Double/Full

53

75

Double/Full Extra Long XL

53

80

Queen

60

80

California King or Western King

72

84

King or Eastern King

76

80

Half Queen

30

80

Old Style Single

36

72

Half California King

36

84

Supersingle (3/4)

47

75

Supersingle (3/4) XL

47

80

California Queen

60

84

Grand King Bed

80

98

>

Countries: Metric measurement systems

SINGAPORE/MALAYSIA

Metric (cm)

Width Length

Single

90

190

Super Single

100

190

Queen

150

190

King

180

190

THAILAND

 

 

Single

100

200

Full

120

200

Queen

150

200

King

180

200

EUROPE and LATIN AMERICA

Single

90

200

Double or full

140

200

Queen

160

200

King

180

200

AUSTRALIA

Single

90

190

Single Extra Long

90

200

King Single

100

200

Double

140

190

Queen

150

200

King

180

200

NEW ZEALAND

Single

90

190

Long Single

90

200

King Single

100

200

Double

140

190

Long Double

140

200

Queen

150

200

King

160

200

Super King

180

200

California King

200

200

JAPAN

Single

97

195

Double or Full

140

195

Wide Double

150

200

Queen

170

195

King

194

195

King Long

194

205