UK duvet cover sizes are 135 x 200 cm for a single, 200 x 200 cm for a double, 225 x 220 cm or 230 x 220 cm for a king, 260 x 220 cm for a super king and 290 x 235 cm for an emperor. Each one is made for the duvet of the same name, not for the mattress. The table below sets the standard sizes next to our own covers and the bed each fits. After it come the European 150 x 200 cm size, the king, whether a cover should match its duvet, US and EU sizes, sizing up, and pillowcases.
| Size | Standard UK cover (cm) | Adam Home cover (cm) | Fits bed (cm) | Pillowcases in our set |
|---|---|---|---|---|
| Single | 135 x 200 | 137 x 200 | 90 x 190 | 1 |
| Double | 200 x 200 | 204 x 204 | 135 x 190 | 2 |
| King | 225 x 220 or 230 x 220 | 235 x 225 | 150 x 200 | 2 |
| Super king | 260 x 220 | 265 x 225 | 180 x 200 | 2 |
| Emperor | 290 x 235 | 290 x 235 | 200 x 200 | 2 |
Single to super king come from Belledorm's size guide and Dunelm's cover listings, which differ only on the king. The emperor is Belledorm's. Bed sizes are from Bed Advice UK, run by the National Bed Federation, with the emperor from Tempur's size guide. All sizes are width first, then length.
What size is a 150x200 duvet cover?
A 150 x 200 cm duvet cover is a European single. IKEA sells it as its single size in the UK, and it's 15 cm wider than a standard UK single duvet of 135 x 200 cm.
A 150 x 200 cm cover on a UK single duvet leaves 15 cm of loose fabric, so the duvet slides to one side in the night. Going the other way is worse: a 150 cm duvet won't go into our 137 cm single cover without bunching, because it's 13 cm too wide. If you own a 150 x 200 cm duvet, buy a cover marked 150 x 200 cm.
What size is a king size duvet cover in cm?
A UK king size duvet cover is 225 x 220 cm or 230 x 220 cm, depending on the maker. Belledorm's size guide uses 225 x 220 cm, and Dunelm lists its plain dye king cover at 230 x 220 cm.
Our king cover is 235 x 225 cm, so it takes either duvet with a little room to spare. The usual mix-up is the European king. IKEA's king cover is 240 x 220 cm, which is 5 cm wider than ours, so a 240 cm duvet would be a tight squeeze in our king. Our super king cover, at 265 x 225 cm, fits it better and leaves 25 cm of spare width at the sides. Going the other way, a 200 x 200 cm cover sold as a "king" abroad is a UK double.
Which bed does each duvet cover size fit?
Each cover fits the bed of the same name: single 90 x 190 cm, double 135 x 190 cm, king 150 x 200 cm, super king 180 x 200 cm and emperor 200 x 200 cm.
Those are the mattress sizes Bed Advice UK gives, with the emperor from Tempur. The in-between beds borrow a neighbour. Mattressman says a small double at 120 x 190 cm can take a standard double duvet and cover, and Tempur lists a Euro king at 160 x 200 cm, which sits between a UK king and a super king. If you're not sure what your mattress is, our UK bed sizes chart lists every size in cm and feet.
Should the cover be the same size as the duvet?
Yes, buy the cover in the same size as your duvet, not your bed. A cover the same size or a few centimetres bigger lets the duvet fill it without straining the seams or leaving loose corners.
Belledorm gives its covers the same measurements as its duvets. Ours are 2 to 10 cm bigger than the duvet each one is made for, and the emperor matches exactly at 290 x 235 cm. US brands sometimes go the other way. Casper says US inserts are often several inches longer than their covers, and suggests a cover the same size as the duvet or about 2 inches shorter. With a UK duvet and a cover in its own size, there's no need to go shorter.
Check which way round the numbers go, too. On a UK king and super king, the longer side runs across the bed. Our guide to which way a duvet goes in its cover shows it size by size.
Are European and US duvet cover sizes the same as UK sizes?
No, European and US duvet cover sizes don't match UK sizes, even when the names are the same. Germany's standard duvet and cover is 135 x 200 cm, but IKEA's is 150 x 200 cm, and US covers are measured in inches and run much wider.
| Region | Common cover sizes | Closest UK size |
|---|---|---|
| Germany (standard) | 135 x 200 cm | Single |
| Germany (comfort) | 155 x 220 cm | None, between single and double |
| IKEA | 150 x 200, 200 x 200, 240 x 220 cm | Single (wider), double, king (wider) |
| US full/queen | 95 x 98 in (241 x 249 cm) | None, wider than a UK king |
| US king | 111 x 98 in (282 x 249 cm) | None, close to an emperor width |
The German sizes are from the bedding maker Moeve, and the US sizes are from Casper's chart. Casper says US duvet sizes differ from brand to brand, so treat those two rows as a guide. Read the centimetres on the label, and buy a cover that matches your duvet.
Can you size up a duvet cover for a fuller look?
Yes, you can size up, but size up the duvet and the cover together. A bigger duvet in its matching cover hangs further down the sides of the bed. A big cover on a small duvet just bunches.
Mattressman's bedding guide says a bigger duvet is fine, such as a double on a single bed, and that it can keep you warmer if you share with someone who takes the covers. A king duvet and king cover on a double bed is the common swap. Our chart of UK duvet sizes and overhang shows how far each size hangs down the side once you go up one.
What size pillowcases come with a duvet cover set?
Our duvet cover sets come with 54 x 77 cm pillowcases: 1 with a single and 2 with a double, king, super king or emperor. That's roomy for a standard UK pillow of 48 x 74 cm.
A standard UK pillow usually goes in a 50 x 75 cm case, according to the OTTY and The Wool Room size charts, so ours leave a bit of extra space for a plump pillow. European sets differ. IKEA's sets come with 50 x 80 cm cases, and Moeve gives 80 x 80 cm as the usual German pillowcase, which won't suit a rectangular UK pillow. A king pillow at 48 x 90 cm needs a longer case than ours. For a third or fourth pillow, our pillowcases come in packs of 2. Our guide to what a duvet cover set includes covers the rest of the set.
Which duvet cover sizes does Adam Home sell?
Our duvet cover sets come in single, double, king, super king and emperor, from £26.99 for a single to £42.99 for an emperor. 90 of our 91 designs come in emperor.
The double is £30.99, the king £34.99 and the super king £38.99. The covers are 100% polyester microfibre with a snap-button closure, designed and made in the UK, and only sold at adamhome.co.uk. Most have a printed front and a plain white back. The duvet isn't included. Our microfibre duvet comes in single to super king, from £15.99, and each of those sizes goes straight into the cover of the same name.
Written by the Adam Home team in the UK.
