08/28/2026
King Bed Sheet Size Guide: Fitted & Flat Sheet Dimensions
Looking for the exact bed sheet size for a king size bed? Ensure a perfect fit before you buy with this quick dimension guide for standard king bedding.
Whether you are measuring for a fitted sheet or looking for full coverage with a flat top sheet, here are the dimensions you need to match your mattress:
King Fitted Sheet Size: 78" x 80" (with a 9" pocket depth for standard mattresses)
King Flat Sheet Size: 108" x 110" (generous cut for easy tucking and drape)
Save this sizing chart to quickly check sheet dimensions next time you stock up on king bed sheets!