JP (cm) to CN Shoe Size (Unisex)

1 JP size = -9 CN size · profile-dependent conversion · context: size system and fit profile

Direct Answer

1 JP size equals -9 CN size

This result depends on the selected profile context: size system and fit profile.

For 4 JP size, this profile returns -3 CN size.

Converter Calculator

1 JP (cm) size =
-9 CN size

Explanation

JP (cm) converts to CN by first mapping JP (cm) to millimeters, then mapping millimeters to CN. Cohort profile fixed: Unisex.

For JP size to CN size, the active size system and fit profile determines the conversion constants applied to every value.

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Keep the same profile in both directions to avoid mixing lookup systems that use different size mappings.

Method & Reference (Verified)

  • Method basis: profile-bound mapping; constants depend on the selected profile encoded in the route.
  • Profile reference: size system and fit profile.
  • Consistency rule: keep the same profile in mirror direction to avoid mixing incompatible mappings.

Common Conversion Values

JP (cm) sizeCN size
4 -3
5 -1
6 1
7 3
8 5
9 7
10 9
11 11
12 13
13 15