UK to EU Bed Size Conversion Chart
When shopping for beds or mattresses across UK and European markets, accurate size conversion prevents expensive mistakes. UK single mattresses measure 90x190cm (3ft) while most EU singles are 90x200cm; UK doubles are 135x190cm (4ft6) against the common EU double of 140x200cm. This guide provides a clear conversion chart, exact measurements, checklists and decision rules to help you choose the right size when buying in the UK or importing from Europe.
Standard UK Mattress and Bed Sizes
UK bed sizes follow consistent national dimensions that differ from continental Europe. All UK mattresses must comply with fire safety regulations under the Furniture and Furnishings (Fire) (Safety) Regulations 1988 and are tested to BS 7177. Common sizes are:
- Small Single: 75x190cm (2ft6)
- Single: 90x190cm (3ft)
- Small Double: 120x190cm (4ft)
- Double: 135x190cm (4ft6)
- King: 150x200cm (5ft)
- Super King: 180x200cm (6ft)
These lengths are typically 190cm for smaller sizes and 200cm for king and above. Always measure your bed frame and room space in centimetres before purchase. For children’s rooms, cot mattresses are commonly 60x120cm and cot bed or toddler beds 70x140cm.
Common European (EU) Bed and Mattress Sizes
European sizes are usually 10cm longer than equivalent UK sizes and often wider. Standard EU dimensions include:
- EU Single: 90x200cm
- EU Double: 140x200cm
- EU King (often called 160): 160x200cm
- EU Super King: 180x200cm or 200x200cm
Many EU countries also offer 120x200cm and 160x200cm as frequent options. EU mattresses do not follow the same UK fire regulations, so check local safety standards if importing. Bunk beds sold in the UK must meet BS EN 747 with the top-bunk guard rail rising at least 16cm above the mattress surface; use the maximum mattress depth stated by the manufacturer and note that top bunks are not recommended for children under 6.
UK to EU Size Conversion Table
| UK Size | UK Dimensions | Closest EU Size | EU Dimensions | Difference |
|---|---|---|---|---|
| Small Single | 75x190cm (2ft6) | EU Small Single | 70x140cm or 80x200cm | 10cm shorter |
| Single | 90x190cm (3ft) | EU Single | 90x200cm | 10cm longer |
| Small Double | 120x190cm (4ft) | EU Small Double | 120x200cm | 10cm longer |
| Double | 135x190cm (4ft6) | EU Double | 140x200cm | 5cm wider, 10cm longer |
| King | 150x200cm (5ft) | EU King (160) | 160x200cm | 10cm wider |
| Super King | 180x200cm (6ft) | EU Super King | 180x200cm or 200x200cm | Same or 20cm wider |
The table shows that length is the most common difference. A UK king size bed will not fit an EU 160x200cm mattress without overhang or gap issues. Measure your existing base carefully.
Practical Checklist When Converting Sizes
Use this checklist to avoid buying the wrong size:
- Measure your bed frame internal dimensions in cm – length, width and depth.
- Decide whether you need exact fit or can accommodate a 10cm difference.
- Check headboard, footboard and room clearance – add at least 10cm around the bed.
- For bunk beds verify the stated maximum mattress depth so the guard rail rises 16cm above the mattress.
- Consider future moves: buying a standard EU size now may suit later relocation.
- Factor in bedding – duvets and sheets differ between UK and EU markets.
If you are furnishing a child’s room, explore our range of Kids' Beds or specifically Kids Single Beds that meet UK safety standards.
Recommended Mattresses for Converted Sizes
When matching a UK frame to a near-EU size or vice versa, choose a mattress that fits the actual base. A Maxitex Premier Sprung Mattress - Double Continental works for the 140x200cm EU double size on a UK small double or double frame. For single rooms the Noomi Waterproof Eco Foam Mattress Single matches both UK and EU single widths while offering easy-clean protection useful for children or guests.
Memory foam options provide good pressure relief on slightly different bases. See our full selection of Memory Foam Mattresses. For larger rooms a UK king size frame pairs well with a Maxitex Diamond Dual Season 1000 Pocket Memory Mattress that offers seasonal comfort on the standard 150x200cm UK king size.
Buying Advice for Cross-Border or Mixed Setups
Decide your priority: perfect fit or future-proofing. If your room is small, a UK double (135x190cm) saves floor space compared with the wider EU 140x200cm. In larger bedrooms the extra 10cm width of EU sizes improves comfort for couples. Always buy the mattress and base from the same sizing system where possible.
Protect your investment with a mattress protector that fits the exact purchased size. If you need extra comfort on a firmer base, a mattress topper can bridge minor size gaps. For storage solutions in either size system browse Storage Beds.
Common Mistakes to Avoid
Assuming UK and EU sizes are interchangeable causes the most returns. A UK 135x190cm mattress will be too narrow and short for a 140x200cm EU base, leaving gaps. Conversely an EU mattress on a UK king frame may overhang. Always convert measurements yourself rather than relying on retailer labels. For children’s bunk beds, never exceed the manufacturer’s stated maximum mattress depth to keep the guard rail effective.
Check the full range of Mattresses and Beds available in UK sizes that meet all current regulations.
Our picks for this guide
- Maxitex Premier Sprung Mattress - Double Continental – Works for the 140x200cm EU double size on a UK small double or double frame.
- Noomi Waterproof Eco Foam Mattress Single – Matches both UK and EU single widths while offering easy-clean protection useful for children or guests.
- Maxitex Diamond Dual Season 1000 Pocket Memory Mattress – Offers seasonal comfort on the standard 150x200cm UK king size.
- Noomi Bamboo Natural Latex Pocket Sprung Mattress – Provides natural materials suitable for either UK or EU sizing systems depending on the specific variant chosen.
Frequently asked questions
Will a UK king size mattress fit an EU king bed?
A UK king mattress measures 150x200cm while EU king is usually 160x200cm. The 10cm width difference means the UK mattress will sit centrally with 5cm gaps on each side. It is better to buy the matching EU size mattress for a flush fit or choose a UK king bed frame instead.
What is the difference between UK double and EU double?
UK double is 135x190cm (4ft6). EU double is 140x200cm. The EU version is 5cm wider and 10cm longer. This extra space can improve comfort for two adults but requires different bedding and may not fit existing UK bed frames without adjustment.
Do I need different bedding for EU sizes?
Yes. EU sizes require wider and longer duvets, sheets and fitted sheets. A UK double duvet is typically 200x200cm while an EU double needs 220x240cm or similar. Always match bedding to the actual mattress size purchased to avoid overhang or insufficient coverage.
Are cot and toddler bed sizes the same in UK and EU?
Cot mattresses are usually 60x120cm in both markets. Cot bed or toddler sizes are commonly 70x140cm. These smaller sizes have less variation than adult beds, but always confirm exact measurements when buying replacement mattresses for safety and fit.
Can I use a UK bunk bed with an EU mattress?
Only if the dimensions match the frame. UK bunk beds must meet BS EN 747 and the top bunk guard rail must rise at least 16cm above the mattress. Check the manufacturer’s stated maximum mattress depth before fitting any EU size mattress.