Sources

Our size data comes from Wikipedia and sizeguide.net — trusted, publicly available references.

Where Our Data Comes From

All measurements and conversions on FitMatch are compiled from these trusted sources. We cross-check tables between them to ensure consistency.

Source	URL	What it covers
Wikipedia — Clothing sizes	https://en.wikipedia.org/wiki/Clothing_sizes	Women's and men's clothing systems, body measurements, EU continental sizes, shoe and bra size systems
Wikipedia — Shoe size	https://en.wikipedia.org/wiki/Shoe_size	Footwear systems (Mondopoint, Paris point, barleycorn), widths, adult and kids conversions
Wikipedia — Bra size	https://en.wikipedia.org/wiki/Bra_size	Band and cup conversions, sister sizes
sizeguide.net — Women's international	https://www.sizeguide.net/womens-clothing-sizes-international-conversion-chart.html	Women's international conversions
sizeguide.net — Men's international	https://www.sizeguide.net/mens-clothing-sizes-international-conversion-chart.html	Men's international conversions
sizeguide.net — Children's international	https://www.sizeguide.net/childrens-clothing-sizes-international-conversion-chart.html	Kids US/UK/EU/AU conversions
sizeguide.net — US children guide	https://www.sizeguide.net/size-guide-children-size-chart.html	Baby and kids detailed charts

Tap a row to highlight · Scroll sideways on mobile7 sizes

FR = EU for modern brands (French sizes were historically EU+2).
IT = EU + 4 (IT 42 = EU 38 = UK 10).
The cm / inch column is the ground truth — label numbers vary between brands.
Mondopoint is foot length; EU footwear includes 13–17 mm of space — we account for this in conversions.

If you quote a figure, cite the original source (e.g. “Wikipedia — Clothing sizes”) and this site.

Remember: the label is a code; the centimetre is a measure. Where they disagree, the measure wins.