Shoe Size Converter — cm to US, EU, UK
Convert shoe sizes between foot length (cm) and US, UK, EU sizing. Pick men's, women's or kids' sizing, then enter your cm or select a US/UK/EU size and the rest are shown automatically. Everything runs in your browser — nothing is ever sent anywhere.
If your foot length isn't an exact chart value, the smallest size at or above it is shown.
Actual fit varies by brand and model. Check the brand's own official size guide before you buy.
What you enter or select is processed entirely in your browser and is never sent anywhere.
Size chart
| Foot length (cm) | United States (US) | United Kingdom (UK) | Europe (EU) |
|---|
How to use
- Choose Men, Women or Kids.
- Enter your foot length in cm, or select your size in US, UK or EU.
- The remaining fields update automatically. You can also check the chart below.
How it works
How the chart works
For men's, women's and kids' shoes, this tool converts using foot length in cm as the anchor unit, against US, UK and EU sizes. Japan (JP) sizing is simply the foot length in cm itself, so it isn't kept as a separate column. Enter a cm value to see the matching US/UK/EU sizes, or pick a US/UK/EU size to see the cm and the rest. This is a table lookup against a fixed chart — no formula-based estimate or interpolation is used.
When your cm isn't an exact chart value
If your measured foot length doesn't land exactly on a chart value, the tool shows the smallest size at or above your measurement. Suggesting a smaller size than measured could mean the shoe doesn't fit, so rounding up is used as a safety-first default.
Source of the chart
The chart is sourced from a cm-based US/UK/EU shoe size table (0.5cm increments for men's and women's).
Men (cm: US / UK / EU, excerpt)
- 22cm: US4 / UK3.5 / EU37
- 24cm: US6 / UK5.5 / EU39
- 26cm: US8 / UK7.5 / EU41
- 28cm: US10 / UK9.5 / EU43
- 30cm: US12 / UK11.5 / EU45
- 32cm: US14 / UK13.5 / EU47
Women (cm: US / UK / EU, excerpt)
- 20.5cm: US4 / UK2 / EU35
- 22.5cm: US6 / UK4 / EU36
- 24.5cm: US8 / UK6 / EU38
- 26.5cm: US10 / UK8 / EU40
- 28.5cm: US12 / UK10 / EU42
Kids (cm: US / UK / EU, excerpt)
- 10.8cm: US3.5C / UK2.5C / EU19
- 13cm: US6C / UK5C / EU22
- 14.6cm: US8C / UK7C / EU24
- 16.5cm: US10C / UK9C / EU27
The full chart is shown below the tool. Where the source shows a range for the women's EU column (e.g. "35-36"), only the smaller whole number is used.
Sizing is brand- and model-dependent (important)
There is no single, strictly enforced global standard for shoe sizes either — actual fit varies by brand, model, and last (the shoe's internal mold shape), and this is well documented. What this tool shows is a general approximation; always cross-check against the specific brand's official size guide before buying. Kids' feet grow quickly, so an in-store fitting is especially recommended for children.
What data is sent
All conversion happens entirely in your browser. Nothing you enter or select is ever transmitted to a server.
FAQ
Is what I enter or select sent anywhere?
No. All conversion happens entirely inside your browser, and nothing is transmitted to any server or external API.
What happens if I enter 26.3cm, which isn't an exact chart value?
The tool rounds up to the smallest size at or above your measurement (in this case, the 26.5cm row). Suggesting a smaller size than measured could mean the shoe doesn't fit, so rounding up is used as a safety-first default.
Why does the same US size fit differently between brands?
There's no single enforced global standard for shoe sizes — actual fit varies by brand, model, and last (the shoe's internal mold shape). This tool's chart is a general approximation; check the specific brand's official size guide for an accurate fit.
How is the Japan (JP) size shown?
Japanese shoe sizing is simply the foot length in cm. So the "Foot length (cm)" field in this tool is itself the JP size.
Are the kids' sizes accurate?
They're shown as a general guide, but children's feet grow quickly and vary a lot individually, so an in-store fitting is especially recommended for kids.
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