Size of King Sheet (US)
Looking for the exact dimensions of a US King bed sheet? Use our chart below to find the precise Width (W) x Length (L) for mattresses, fitted sheets, and flat sheets in both Centimeters (cm) and Inches.
Size Converter
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Converted Sizes
King Dimensions
Mattress193 x 203 cm
Fitted Sheet193 x 203 cm
Flat Sheet274 x 259 cm
* Tip: A flat sheet should be at least 30cm wider and longer than your mattress to tuck in propery.
Reference Table
Complete size conversion chart
| Size Name | Mattress (cm) | Fitted Sheet (cm) | Flat Sheet (cm) |
|---|---|---|---|
| Twin | 99 x 191 | 99 x 191 | 168 x 244 |
| Twin XL | 99 x 203 | 99 x 203 | 168 x 244 |
| Full / Double | 137 x 191 | 137 x 191 | 206 x 244 |
| Queen | 152 x 203 | 152 x 203 | 229 x 259 |
| King | 193 x 203 | 193 x 203 | 274 x 259 |
| California King | 183 x 213 | 183 x 213 | 259 x 264 |
Frequently Asked Questions
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Common Questions about King Sheets
- Fitted vs Flat: A fitted sheet for a King bed must match the mattress dimensions exactly. A flat sheet is always significantly larger to allow for tucking.
- Pocket Depth: Standard fitted sheets fit mattresses up to 30cm (12") deep. If you have a pillow-top King mattress, look for "Deep Pocket" sheets.
- International Differences: A "King" in US may not be the same size in other countries. Always check the cm/inch measurements before buying imported bedding.