US to JP (cm) Shoe Size for Unisex
Snapshot
8 US size equals 26 JP (cm) size. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This result uses the selected cm cohort as the profile basis.
- Example: For 5.5 US size, the cm cohort returns 24 JP (cm) size under the same mapping assumptions.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Interactive conversion
Converter Calculator
26 JP (cm) size
SwitchMachine access
Available to apps and AI agents
US to JP (cm) Shoe Size for Unisex can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The unisex cohort identifies the sizing system used by the conversion.
Machine-readable identifiers
- Conversion family
shoe-size- Source unit
us- Target unit
jp-centimeters- Cohort
unisex
The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.
Example API request and response
POST /api/v1/convertRequest
{
"family": "shoe-size",
"value": 8,
"from": "us",
"to": "jp-centimeters",
"parameters": {
"cohort": "unisex"
}
}Essential response
{
"ok": true,
"conversion": {
"family": "shoe-size",
"value": 8,
"from": "us",
"to": "jp-centimeters",
"result": {
"raw": 26.1533336,
"display": "26"
},
"canonicalPath": "/apparel-size/shoe-size/us-to-jp-centimeters-for-unisex/"
}
}Explanation
US converts to JP (cm) by first mapping US to millimeters, then mapping millimeters to JP (cm). Cohort profile fixed: Unisex.
US size to JP (cm) size is cohort-bound here: the selected cm cohort controls the mapping used by calculator and reference table.
Keep the same cohort in both directions to avoid mixing shoe-size systems that use different wearer-group mappings.
Common Conversion Values
| US size | JP (cm) size |
|---|---|
| 5.5 | 24 |
| 6.5 | 25 |
| 8 | 26 |
| 9 | 27 |
| 10 | 28 |
Questions & answers
Frequently Asked Questions
Is the reverse shoe-size direction available?
Yes. The mirror page JP (cm) to US (Unisex) uses the inverse mapping path.
Which shoe-size cohort is used for US to JP (cm)?
Unisex sizing is fixed for this shoe-size mapping.
What formula is used for US size to JP (cm) size?
The converter applies the formula defined for US size to JP (cm) size, then renders rounded output for the direct answer and common-value rows.