Clothing Sizing
US Clothing Sizes Explained
2 min read · Updated October 27, 2026
US clothing sizes are manufacturer labels, not universal body measurements. Use the current brand chart and relevant product dimensions.
Different categories use different labels
Women’s clothing can use numeric or letter sizes. Men’s dress shirts may use collar and sleeve measurements; suit jackets may use chest-based labels; trousers may use waist and inseam. Do not treat all shirts as chest-inch labels.
Body and garment charts differ
Body charts describe the intended wearer. Product charts describe the finished garment and may use flat widths. UNIQLO publishes separate guidance for these measurement types. Compare like with like.
Do not use a universal vanity-sizing equation
Brands and product versions differ, but a fixed claim that today’s US 4 equals a historical US 8 is not a dependable conversion. Fit the current chart rather than an assumed historical offset.
International equivalents are approximate
Generic US-to-UK or US-to-EU labels are starting points. The product chart and fabric determine the useful measurement range, and petite or tall ranges can change proportions as well as length.
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Frequently asked questions
- Does this guidance guarantee fit?
- No. Use current product-specific measurements and an actual fit check; generic conversions are approximate.
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European Clothing Sizes Explained
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Why Shoe Sizes Differ Between Countries
Shoe systems use different measurement scales and label conventions. The brand’s current conversion chart matters more than a guessed country offset.
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SizeAtlas · Last updated October 27, 2026