California King comforter size
264 × 254 cm
104 × 100 in · North America · fits a 183 cm California King bed
About this size
Four inches longer than a standard king comforter and the same width, matching the longer, narrower California king mattress.
How much it hangs over
A comforter is not the size of the bed and is not meant to be. This one is 81 cm wider than the mattress, so it drops 40.6 cm on each side.
| Comforter width | 264 cm · 104 in |
| Length | 254 cm · 100 in |
| Mattress width | 183 cm |
| Overhang per side | 40.6 cm |
| Area | 6.7 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.
Nearest sizes
| Size | Region | Dimensions | vs this |
|---|---|---|---|
| King | North America | 264 × 244 cm | 0 cm wide |
| Super King | United Kingdom | 260 × 220 cm | -4 cm wide |
| Emperor | United Kingdom | 290 × 235 cm | +26 cm wide |
| King | United Kingdom | 225 × 220 cm | -39 cm wide |
| Queen | North America | 224 × 244 cm | -41 cm wide |
| Full | North America | 206 × 224 cm | -58 cm wide |
Frequently asked questions
What size is a California King comforter?
264 × 254 cm, or 104 × 100 inches.
Why is a California King comforter wider than a California King bed?
Because it has to hang over the sides. The bed is 183 cm wide and the comforter is 264, which leaves 40.6 cm on each side. Less than about 25 cm and the cover rides up and exposes the mattress whenever anyone turns over.
What bed does a California King comforter fit?
A California King bed, 183 cm wide. Its full dimensions are here.
What size duvet cover do I need?
The same as the duvet: 264 × 254 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.
All bedding sizes · The California King mattress · All bed sizes