International Shoe & Clothing Size Converter

Compare common adult shoe and clothing labels across the US, UK, Europe, Japan and international alpha sizes. Choose the label you know to see the matching reference row instantly.

Last reviewed: 29 July 2026Method: chart lookup, not a universal formulaPrivacy: inputs stay in your browser

Convert a size

Choose the system printed on the label.
Available values change with the item and system.

No account, upload or backend is used. This lookup runs entirely on your device and does not record the size you select.

Equivalent sizes

Select a size and choose Convert size to see the international reference equivalents.

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Size conversion is an estimate

There is no single worldwide sizing standard used identically by every brand. A converted label identifies a useful comparison row, not a guaranteed fit.

Shoe lasts, width systems, garment ease and brand-specific grading all vary. Check the product maker’s chart and use your actual foot or body measurements whenever possible.

Adult shoe size conversion chart

This compact chart shows common reference equivalents. The JP/CM column is a label conversion; compare the separate approximate foot-length column when measuring.

Common adult shoe labels and approximate foot lengths
US men / unisexUS womenUKEUJP/CM labelApprox. foot length

How to measure for a better fit

Measure your feet

  1. Stand on paper on a hard floor, wearing the socks you expect to use.
  2. Mark the heel and the end of the longest toe with the pen held vertical.
  3. Measure both feet and use the longer length.
  4. Compare that measurement with the brand’s foot-length chart. If between sizes, check its sizing-up advice.

Measure clothing

  1. Keep the tape level and comfortably close to the body, without pulling tight.
  2. Measure chest or bust around the fullest point.
  3. Measure the natural waist and the fullest part of the hips where relevant.
  4. Use the measurement most important to the garment, then check the brand’s intended fit and fabric stretch.

Use a garment you own

For online clothing orders, compare the seller’s garment measurements with a similar item that already fits. Body measurements and finished-garment measurements are not the same: garments normally include wearing ease.

Common conversion examples

US men’s shoe 10

The reference row gives US women 11.5, UK 9.5, EU 44 and JP/CM 28. The approximate measured foot length in this chart is 27.9 cm.

Women’s clothing US 8–10

The common reference row is international M, UK 12–14, EU 40–42, France 42–44 and Italy 44–46.

Men’s jacket EU 52–54

The common reference row is international L, with an approximate chest range of 41–43 in or 104–109 cm.

International size converter FAQs

Are shoe size conversions exact?

No. Conversion charts are a starting point because lasts, widths and rounding differ by brand and shoe model. Measure both feet and check the maker’s chart.

What is a women’s US size 8 in the UK and EU?

A common clothing-chart equivalent is UK 12 and EU 40. This tool groups it in the M row, but brand measurements and fit can differ.

What is a men’s US shoe size 10 in EU sizing?

A common reference equivalent is EU 44. Some brands label a similar fit EU 43 or 44.5, so use the brand chart when available.

Does Japan shoe size mean foot length in centimetres?

Japanese shoe labels commonly use centimetres, but a box’s CM or JP label is not guaranteed to equal your exact measured foot length. Follow the brand’s measuring instructions.

Should I size up when I am between sizes?

For shoes, many brands suggest trying the larger size when foot length falls between chart values. For clothing, choose based on the intended fit and the measurement that matters most for the garment.

Are men’s and women’s US shoe sizes the same?

No. In many adult charts a women’s US label is about 1.5 sizes higher than the corresponding men’s or unisex label, but this relationship is brand-specific.

Methodology and sources

Method: The tool performs a direct lookup in the visible reference data. It does not interpolate or claim a mathematical standard where none exists. Women’s numeric clothing values are grouped into practical ranges; men’s garments use chest ranges because regional numeric labels are not applied consistently across every garment type.

Shoe reference: The generalized half-size rows and measuring guidance were compared with Nike’s current adult footwear chart. Brand charts sometimes repeat or skip a UK, EU or CM label, which is why this tool presents a cross-brand reference rather than claiming to reproduce one maker’s chart. Nike also explicitly distinguishes the CM box label from measured foot length.

Clothing reference: Women’s regional numeric relationships were checked against Nike’s current women’s numeric clothing chart. Measurement-first guidance was also compared with its men’s tops chart. The converter intentionally uses ranges where retailers commonly group multiple numeric sizes under one alpha label.

Review: Maintained by Starlight Robotics. Last reviewed 29 July 2026. Always prefer the chart on the exact product page when it differs from this general reference.

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