BR to AU Shoe Size for Kids
Snapshot
30 BR size equals 5.5 AU 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 selected cohort cohort as the profile basis.
- Example: For 27 BR size, the selected cohort cohort returns 3 AU 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
5.5 AU size
SwitchExplanation
BR converts to AU by first mapping BR to millimeters, then mapping millimeters to AU. Cohort profile fixed: Kids.
From BR size to AU size, results depend on the selected selected cohort cohort and stay consistent with that cohort across table rows and calculator input.
Keep the same cohort in both directions to avoid mixing shoe-size systems that use different wearer-group mappings.
Common Conversion Values
| BR size | AU size |
|---|---|
| 27 | 3 |
| 29 | 4.5 |
| 30 | 5.5 |
| 32 | 7 |
| 33 | 7.5 |
Frequently Asked Questions
How can I convert back from AU size to BR size?
Use the mirror AU size to BR 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.
What formula is used for BR size to AU size?
The converter applies the formula defined for BR size to AU size, then renders rounded output for the direct answer and common-value rows.