Compare bedding by item type, width and length rather than size name alone. The converter separates mattresses, filled duvets or comforters, covers and sheets, and uses named brand references. Exact unit conversion is different from the nearest regional match, which is a comparison rather than a fit guarantee.
Choose the right product category
Select the market and item type, then inspect the named source. A mattress footprint is not a duvet-cover size. Sheridan, Dunelm, Casper and The Company Store provide reference examples, while your exact listing determines the product you buy.
For a product outside the table, enter both custom dimensions in centimetres. One custom side combined with a borrowed reference side would describe a different product.
Read the evidence: Dunelm bed linen buying guide · Sheridan size guide · Casper mattress size guide · The Company Store T-Shirt Soft Jersey Knit Duvet Cover Set
Read both measurement differences
One inch equals exactly 2.54 cm. For illustration, 80 × 90 inches converts to 203.2 × 228.6 cm. Unit conversion is exact; the input measurements and intended product pairing still need checking.
The nearest match minimises width-plus-length differences without rotating the item. Review both differences. For fitted sheets, also check the maker’s intended mattress-depth range; the footprint alone is incomplete.
Common questions
Does matching king or queen mean the dimensions match?
No. Regional names and brand ranges can differ. Select the same item type and compare both dimensions.
Does the tool check fitted-sheet pocket depth?
Reference details may show depth, but you must measure your mattress-and-topper arrangement and confirm the product’s intended fit.
Why can a regional flat-sheet reference be unavailable?
A supported named range is required. Enter the actual product’s two dimensions when no verified table covers it.