Mattress Size Chart (US, UK, EU Comparison)

Quick answer: Mattress sizes vary significantly by region. A US King (76×80 in) is larger than a UK King (60×78 in), which is closer to a US Queen. Always compare exact dimensions in cm or inches before buying internationally.

See also: Duvet size guide · Measurement standards

Convert your mattress size internationally

Enter your mattress dimensions or select a known size to find the closest equivalent in another country.

Select values to see the closest equivalent.

Find equivalent mattress sizes worldwide

Select your region and mattress size to see typical width × length equivalents across major markets (same pattern as our shoe and clothing converters).

Equivalent sizes

Choose a region and mattress size above.

Dimensions are typical retail standards. Always confirm width × length on the product label before buying sheets or bases internationally.

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Mattress Size Chart

Compare mattress sizes across US, UK, and EU.

Measurement Tools

Explore unit conversions and measurement standards.

Global mattress dimensions (reference chart)

Width × length. Common retail standards; brands, hotels, and imports may differ—always check the product label.

Approximate mattress sizes by region
Size category	US / Canada	UK / Ireland	EU	Australia / NZ	Japan
Twin / Single	38×75 in (97×191 cm)	36×75 in (90×190 cm)	90×200 cm	92×188 cm (Single); 92×203 cm (Long Single)	~97×195 cm (typical single; varies)
Full / Double	54×75 in (137×191 cm)	54×75 in (~135×190 cm)	140×200 cm	137×188 cm (Double)	140×195 cm (small double)
Queen	60×80 in (152×203 cm)	— (see UK King ≈ US Queen)	160×200 cm	153×203 cm	154×195 cm (common)
King	76×80 in (193×203 cm)	60×78 in (150×200 cm) UK King	180×200 cm	183×203 cm	170–180×195 cm (varies)
King Single (AU / NZ)	—	—	—	107×203 cm	—
Super King	— (not a single national standard)	72×78 in (180×200 cm)	200×200 cm	203×203 cm	— (less common)
California King	72×84 in (183×213 cm)	—	—	—	—

How mattress sizes differ globally

US / Canada

North American beds tend to be wider at a given “name” than UK equivalents, and Queen is the most common upgrade size. California King trades width for extra length.

UK / Ireland

A UK “King” is roughly US Queen width (about 150×200 cm). Names do not transfer; compare centimetres before importing sheets or frames.

EU

Retailers sell by metric width × length; 200 cm length is very common. “Queen” or “King” on packaging may be a translation—read the cm line.

Australia / New Zealand

AU/NZ use their own grid: King Single (wider than a single, same length as King) is widely sold, and Queen/King cm sizes differ from US labels with similar names.

Japan

Domestic mattresses are often shorter in length (around 195 cm) to suit room layouts; semi-double and double are popular urban sizes.

Frequently asked questions

Is a UK king the same as a US king?

No, UK king is smaller and closer to US queen.

What size is 160×200 cm mattress?

EU standard equivalent to US Queen.

Can I use US bedding on a UK mattress?

Not recommended due to dimension mismatch.