UK King duvet size
225 × 220 cm
89 × 87 in · United Kingdom · fits a 150 cm King bed
About this size
The UK king duvet. Note that it is narrower than an American king comforter by nearly 40 cm — the two names describe different bedding for different beds, and neither fits the other.
How much it hangs over
A duvet is not the size of the bed and is not meant to be. This one is 75 cm wider than the mattress, so it drops 37.5 cm on each side.
| Duvet width | 225 cm · 89 in |
| Length | 220 cm · 87 in |
| Mattress width | 150 cm |
| Overhang per side | 37.5 cm |
| Area | 5.0 m² |
Under about 25 cm of overhang the cover rides up as soon as anyone turns over, which is the real complaint behind "the duvet is too small" — usually it is the right size for the bed and the wrong size for two people.
The same name, different bedding
A North America King is 264 × 244 cm — 39 cm wider than this one. The names match and the bedding does not, which is the same collision the mattress sizes have.
Nearest sizes
| Size | Region | Dimensions | vs this |
|---|---|---|---|
| Queen | North America | 224 × 244 cm | -1 cm wide |
| Full | North America | 206 × 224 cm | -19 cm wide |
| Double | United Kingdom | 200 × 200 cm | -25 cm wide |
| Super King | United Kingdom | 260 × 220 cm | +35 cm wide |
| King | North America | 264 × 244 cm | +39 cm wide |
| California King | North America | 264 × 254 cm | +39 cm wide |
Frequently asked questions
What size is a UK King duvet?
225 × 220 cm, or 89 × 87 inches.
Why is a King duvet wider than a King bed?
Because it has to hang over the sides. The bed is 150 cm wide and the duvet is 225, which leaves 37.5 cm on each side. Less than about 25 cm and the cover rides up and exposes the mattress whenever anyone turns over.
Is a King duvet the same everywhere?
No. A North America King is 264 × 244 cm, against 225 × 220 here — a difference of 39 cm in width. Bedding bought under the same name in the other country will not fit.
What size duvet cover do I need?
The same as the duvet: 225 × 220 cm. Covers are sold to match the insert, not the bed — buying a cover by bed size is the usual reason one arrives too small.