Shoe & Clothing Sizes

Shoe & Clothing Sizes holds seven fixed conversion tables — men's, women's and kids' shoes, women's dresses and tops, and men's jackets and suits, dress shirts and trousers — and reads a size across the columns of whichever one you pick. Choose the chart, say which system your number is written in, and the matching row comes back with every other column named: US 9 gives UK 8.5, EU 42.5 and a foot length of 27 cm, as text and as a table.

Leave the input empty and the whole chart is printed instead, which is the shorter route when what you want is the size chart rather than one answer. Sizes otherwise go in one per line, so a list pasted out of an order or a stock sheet is read in a single pass, and half sizes written as 9½ or 9 1/2 are understood alongside the plain 9.5. That pass is all or nothing, though: a single line the chart cannot place stops the whole run and reports its line number, so no results at all come back until that entry is corrected or dropped. A letter size is not always one row — M covers both US 8 and US 10 on the women's chart — so every row that letter touches is shown, with a note saying how many it spans rather than the first one being picked quietly.

Four columns are read as tape-measure figures rather than labels: foot length in centimetres on the three shoe charts, bust in inches, and the chest and waist centimetre columns. On those, anything within about 1.5 units of a listed row returns that row marked as the closest match — and the tolerance reaches past the ends of the table as well as between rows, so a 34 cm foot is answered with the largest size the chart holds, 33 cm at US 15, rather than being refused. Every other numeric column, the shirt collar in inches and centimetres included, allows about a quarter of a unit and no more. Letter columns and the kids' US column allow nothing: they match the text as written. Beyond the tolerance a size is refused rather than rounded, and the message names the span the chart covers plus, when the figure lands inside that span, the two listed sizes it falls between — so an ambiguous measurement is handed back to you instead of being answered with false confidence.

What this cannot do is fit you. These are the generic conversion tables between labelling systems, not any one retailer's chart, and clothing sizing drifts between brands, countries and decades — so treat a converted size as the size to try, and prefer the measurement columns whenever the seller publishes measurements. Width fittings are not modelled at all, so a D or an EE has nowhere to go. Coverage stops where the seven tables stop: no infant shoes below US 4, no bra sizing, no children's clothing, and no women's jackets or trousers. The kids' chart needs the most care. Its US column carries the 1Y to 6Y youth labels, so it is matched as text and a kids' US size has to be written the way the table writes it; its UK column runs 3.5 up to 13 and then restarts at 1 for the youth range, which means UK 3.5 is an 11.4 cm toddler foot while UK 3 is a 22.2 cm one, and the tool reads that column as a single run of numbers without knowing the two scales apart. Check it against the centimetres before you order.

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