JP (cm) to CN Shoe Size for Kids
Snapshot
20 JP (cm) size equals 33 CN 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 18 JP (cm) size, the cm cohort returns 29 CN 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.
Converter Calculator
33 CN size
SwitchExplanation
JP (cm) converts to CN by first mapping JP (cm) to millimeters, then mapping millimeters to CN. Cohort profile fixed: Kids.
JP (cm) size to CN 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
| JP (cm) size | CN size |
|---|---|
| 18 | 29 |
| 19 | 31 |
| 20 | 33 |
| 21 | 35 |
| 22 | 37 |
Frequently Asked Questions
What is the opposite direction for JP (cm) size to CN size?
Use the mirror CN size to JP (cm) size route; it applies the inverse relationship for the opposite direction with the same assumptions.
Does this page use cohort-specific mapping?
Yes. This page is fixed to Kids.
How is JP (cm) size to CN size calculated?
The converter applies the formula defined for JP (cm) size to CN size, then renders rounded output for the direct answer and common-value rows.