UK Mattress Size to EU Converter
Find the closest European mattress size for any UK bed, or convert an EU size back to UK, with the exact width and length difference in centimetres.
Convert Mattress Sizes
Choose the direction, then pick the mattress size you have. The converter shows the nearest standard size in the other system, how many centimetres it differs by, and what that means for your bed frame and sheets.
Mattress Size Converter
Get the nearest equivalent in one click.
UK vs EU Mattress Sizing
What changes when you cross the Channel
Length Is the Main Gap
UK single, small double and double mattresses are about 190 cm (6 ft 3 in) long. EU mattresses are usually 200 cm, so they are 10 cm longer.
Names vs Dimensions
UK sizes have names like king and super king. EU sizes are named by width and length, such as 160 × 200, so always compare the numbers.
Bed Frames Must Match
A smaller mattress fits a larger frame with a gap, but a larger mattress will not fit a smaller frame. Check the frame’s internal size first.
Sheets and Protectors
Fitted sheets, toppers and mattress protectors are sized to the mattress. Buy them in the same size as the mattress you actually have, not the nearest name.
UK to EU Mattress Size Chart
Standard UK mattress sizes alongside the closest common EU size. Dimensions are width × length.
UK Mattress to Closest EU Size
| UK Size | UK Dimensions | Closest EU Size | Difference |
|---|---|---|---|
| Small Single | 75 × 190 cm (2 ft 6 in × 6 ft 3 in) | 80 × 200 cm | +5 cm wide, +10 cm long |
| Single | 90 × 190 cm (3 ft × 6 ft 3 in) | 90 × 200 cm | Same width, +10 cm long |
| Small Double | 120 × 190 cm (4 ft × 6 ft 3 in) | 120 × 200 cm | Same width, +10 cm long |
| Double | 135 × 190 cm (4 ft 6 in × 6 ft 3 in) | 140 × 200 cm | +5 cm wide, +10 cm long |
| King | 150 × 200 cm (5 ft × 6 ft 6 in) | 160 × 200 cm | +10 cm wide, same length |
| Super King | 180 × 200 cm (6 ft × 6 ft 6 in) | 180 × 200 cm | Exact match |
| Emperor | 200 × 200 cm (6 ft 6 in × 6 ft 6 in) | 200 × 200 cm | Exact match |
EU Mattress to Closest UK Size
| EU Size | Closest UK Size | UK Dimensions | Difference |
|---|---|---|---|
| 80 × 200 cm | Small Single | 75 × 190 cm | −5 cm wide, −10 cm long |
| 90 × 200 cm | Single | 90 × 190 cm | Same width, −10 cm long |
| 100 × 200 cm | Single | 90 × 190 cm | −10 cm wide, −10 cm long |
| 120 × 200 cm | Small Double | 120 × 190 cm | Same width, −10 cm long |
| 140 × 200 cm | Double | 135 × 190 cm | −5 cm wide, −10 cm long |
| 160 × 200 cm | King | 150 × 200 cm | −10 cm wide, same length |
| 180 × 200 cm | Super King | 180 × 200 cm | Exact match |
| 200 × 200 cm | Emperor | 200 × 200 cm | Exact match |
Mattress Size FAQ
Answers to the most common questions about UK and European mattress sizes.
A UK king size mattress is 150 × 200 cm. The closest standard EU size is 160 × 200 cm, which is 10 cm wider and the same length.
Yes. A UK super king mattress is 180 × 200 cm, which matches the common EU 180 × 200 cm size exactly.
UK single, small double and double mattresses are traditionally 6 ft 3 in, or about 190 cm long. The standard EU mattress length is 200 cm, so the EU version is about 10 cm longer.
A UK mattress that is smaller than the EU frame will fit but leave a gap, for example 10 cm of width for a UK king in an EU 160 × 200 cm frame. An EU mattress will not fit a smaller UK frame, so always measure the frame’s internal width and length first.
Yes, slightly. Most manufacturers allow a tolerance of 1 to 2 cm in width and length, and some brands use their own sizes. Check the exact dimensions on the product page before buying a frame, sheets or a mattress protector.