Mattress Size Chart & Finder
Compare common mattress dimensions in Taiwan, Japan, the US and Canada, the UK and continental Europe, or enter a measured width and length to find close matches.
Data last maintained
Mattress Size Chart & Finder
Compare common mattress dimensions in Taiwan, Japan, the US and Canada, the UK and continental Europe, or enter a measured width and length to find close matches.
Data last maintained
About the Mattress Size Chart & Finder
Common market dimensions, not one global standard
Twin, Double, Queen and King do not always mean the same width or length. The table keeps each market name attached to a measured dimension and its source instead of merging similar labels.
Reverse lookup from the mattress you actually measured
Enter either side first; the tool normalizes orientation and units before matching. Exact ties are all retained. A nearby result states the largest side difference and should not be treated as interchangeable without checking the frame and product label.
Bedding names are not enough to confirm fit
For a fitted sheet or protector, compare the measured mattress width and length and also check mattress depth. Duvets and flat sheets intentionally use different dimensions and are outside this mattress-fit lookup.
FAQ
Common questions and answers about this topic.
Is a Queen mattress the same size in every country?
No. A common US Queen is 60 × 80 inches, about 152.4 × 203.2 cm. The Japan retailer reference in this table labels 160 × 200 cm as Queen, while Taiwan's commonly named large double is 182 × 188 cm. Compare dimensions, not the word Queen alone.
What is the difference between a UK King and a US King?
A common UK King is 150 × 200 cm. A common US King is 76 × 80 inches, about 193 × 203.2 cm, so it is much wider. A UK Super King at 180 × 200 cm is closer in width but is still not the same dimension.
How should I measure a mattress for this lookup?
Remove bedding and measure the mattress itself from edge to edge. Enter the two horizontal sides in any order; the tool treats the shorter side as width and the longer as length. Do not measure the outside of the bed frame, headboard or packaging.
Why does the tool sometimes show more than one result?
Different markets can publish the same measured dimension under different names, and two dimensions can also be equally close to what you entered. The tool keeps every tied answer so it does not hide a real ambiguity. Use market, frame label and exact dimensions to decide which naming system applies.
Can I buy a fitted sheet using only the mattress size name?
It is safer to match the measured width and length and then check mattress depth against the fitted sheet pocket. A name such as Queen may refer to different dimensions by market, and a correct top dimension can still fail if the mattress is thicker than the sheet allows.
Does a near match mean the mattress fits the frame?
No. Near only means it is the closest record in this table within a limited observation window. Even a few centimetres can matter for a rigid frame, fitted sheet or gap. Confirm the frame's internal opening, manufacturer tolerance and product label before treating sizes as compatible.
Data Sources
This tool's data is compiled from the authoritative sources below.
- iloom Taiwan mattress size guide(opens in a new tab)
- Bedstore Taiwan mattress size guide(opens in a new tab)
- IKEA Japan mattress sizes(opens in a new tab)
- Sleep Foundation mattress size guide(opens in a new tab)
- IKEA UK mattress size guide(opens in a new tab)
- IKEA Ireland European mattress size guide(opens in a new tab)
- IKEA Germany mattress size guide(opens in a new tab)
Data last maintained