Japanese to US women's dress size converter
Shows the US size that matches a Japanese women's dress, top or blouse size, using the common retail conversion chart. Japanese brands often cut narrower in the shoulders and sleeves.
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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 japanese size (jp).
- 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
US size = JP size - 5. Chart used: UK = AU = US + 4, EU = US + 32, FR = US + 34, IT = US + 38, JP = US + 5.
Example
Inputs: Japanese size (JP) = JP 13. Result: US size (US): 8; Letter size: M.
Limits and caveats
- Based on the common retail conversion chart, not a binding official standard. Chart used: UK = AU = US + 4, EU = US + 32, FR = US + 34, IT = US + 38, JP = US + 5.
- Brands differ and can be a full size apart, so check the brand chart before you order.
- Japanese sizes above 19 are rare in stores, so those rows extend the same chart.
Questions about this tool
What is a Japanese 13 in US sizes?
It is a US 8 on the common chart, which is a letter size M.
How do Japanese and US sizes differ?
On this chart the US number is 5 lower than the Japanese number at every step. US sizes are used in the United States and Canada, with even numbers starting at 0.
Does the result hold for every brand?
No. This is a general reference chart and a brand can run a full size off it. Compare your bust, waist and hip measurements with the brand chart before buying.