US men's shoe size to cm and JP size
See the foot length your US men's size fits, so you can order from Asian stores with confidence.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter us men's size.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Foot length (in) = (US men's + 22) ÷ 3, then JP size = foot length (cm), with 1 in = 2.54 cm. The JP size is rounded to the nearest 0.5 cm and the KR and CN size to the nearest 5 mm, following the ISO/TS 19407 formulas.
Example
Inputs: US men's size = 9. Result: JP size (cm): 26 cm; Exact value before rounding: 26.25 cm; KR and CN size: 260 mm.
Limits and caveats
- Brands and models can differ from this chart by up to one size, so check the brand's own chart when you have it.
- Based on the ISO/TS 19407 formulas, which add an allowance of two sizes to the foot length.
- Foot width and shape are not taken into account.
Questions about this tool
What is US men's 9 in cm?
It is JP 26 cm using the ISO/TS 19407 formulas; the exact value before rounding is 26.25.
Why does a brand's chart differ from this US men's to foot length in cm result?
Each brand rounds its sizes and builds its lasts its own way, so its chart can be up to one size off. Measuring your foot in cm is the most reliable check.
Is the cm on a shoe label the same as this result?
Usually close: labels print the foot length the shoe fits, but each brand rounds its own way, so a 0.5 cm difference is normal.